Las Vegas to Chicago (LAS–ORD) — Airlines, Schedules & Connections

LAS Airport Page →
1,511 mi airlines charter/private 362/wk
On-time Some delays Frequent delays
Flight Schedule 103 flights Verified 4m ago
Also flown by charter / private operators: NetJets Aviation, Executive Jet Management.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
AA3062
Starts Oct 6 Seat map
AA American
738 Seat map
12:20 AM
PDT T1
5:59 AM
CDT
3h 39m
M T W T F S S
Prices
AZ4488
Starts Sep 26
AZ ITA
7M9
6:00 AM
PDT T3
11:48 AM
CDT
3h 48m
35%
M T W T F S S
Prices
UA1057
Starts Sep 25
UA United
7M9
6:00 AM
PDT T3
11:48 AM
CDT
3h 48m
58%
M T W T F S S
Prices
AA2258+6
Seat map
AA American
738 Seat map
6:21 AM
PDT T1
11:39 AM
CDT
3h 18m
M T W T F S S
Prices
BA5059cs
BA British
738
6:32 AM
PDT T1
12:30 PM
CDT
3h 58m
M T W T F S S
Prices
RJ7099cs
RJ Royal Jordanian
738
7:00 AM
PDT T1
12:59 PM
CDT
3h 59m
M T W T F S S
Prices
QR7957cs
QR Qatar
738
7:00 AM
PDT T1
12:59 PM
CDT
3h 59m
M T W T F S S
Prices
LH9313cs
LH Lufthansa
739
7:00 AM
PDT
12:48 PM
CDT
3h 48m
M T W T F S S
Prices
BA4738cs
BA British
738
7:00 AM
PDT T1
12:59 PM
CDT
3h 59m
M T W T F S S
Prices
IB4236cs
IB Iberia
738
7:00 AM
PDT T1
12:59 PM
CDT
3h 59m
M T W T F S S
Prices
UA664+6
UA United
739
7:10 AM
PDT T3
12:41 PM
CDT
3h 31m
58%
M T W T F S S
Prices
AZ4428cs
AZ ITA
739
7:12 AM
PDT T3
1:00 PM
CDT
3h 48m
35%
M T W T F S S
Prices
AC3345cs
AC Air Canada
739
7:12 AM
PDT T3
1:00 PM
CDT
3h 48m
57%
M T W T F S S
Prices
LX3297cs
LX Swiss
739
7:15 AM
PDT T3
1:03 PM
CDT
3h 48m
M T W T F S S
Prices
EI7419cs
EI Aer Lingus
738
7:20 AM
PDT T1
1:16 PM
CDT
3h 56m
75%
M T W T F S S
Prices
OS7744cs
OS Austrian
32Q
9:00 AM
PDT T3
2:52 PM
CDT
3h 52m
M T W T F S S
Prices
IB4016cs
IB Iberia
738
9:34 AM
PDT T1
3:37 PM
CDT
4h 3m
M T W T F S S
Prices
RJ7270cs
RJ Royal Jordanian
738
9:34 AM
PDT T1
3:37 PM
CDT
4h 3m
M T W T F S S
Prices
GF6667cs
GF Great Barrier Airlines
738
9:34 AM
PDT T1
3:37 PM
CDT
4h 3m
M T W T F S S
Prices
EI7416cs
EI Aer Lingus
738
9:34 AM
PDT T1
3:37 PM
CDT
4h 3m
75%
M T W T F S S
Prices
AA3080+5
Seat map
AA American
321 Seat map
9:47 AM
PDT T1
3:48 PM
CDT
4h 1m
M T W T F S S
Prices
BA4739cs
BA British
321
9:47 AM
PDT T1
3:48 PM
CDT
4h 1m
M T W T F S S
Prices
QR7565
Starts Oct 5 Seat map
QR Qatar
321 Seat map
9:58 AM
PDT T1
3:53 PM
CDT
3h 55m
M T W T F S S
Prices
AA1592
Starts Oct 5 Seat map
AA American
321 Seat map
9:58 AM
PDT T1
3:53 PM
CDT
3h 55m
M T W T F S S
Prices
BA1719
Starts Oct 11 Seat map
BA British
321 Seat map
9:58 AM
PDT T1
3:53 PM
CDT
3h 55m
M T W T F S S
Prices
EK6178cs
EK Emirates
32Q
10:25 AM
PDT T3
4:21 PM
CDT
3h 56m
M T W T F S S
Prices
AC3346cs
AC Air Canada
A21N
10:50 AM
PDT T3
4:42 PM
CDT
3h 52m
57%
M T W T F S S
Prices
SN8862cs
SN Brussels Airlines
32Q
10:50 AM
PDT T3
4:42 PM
CDT
3h 52m
M T W T F S S
Prices
UA1583+5
UA United
A21N
10:50 AM
PDT T3
4:42 PM
CDT
3h 52m
58%
M T W T F S S
Prices
LX3259cs
LX Swiss
A21N
10:50 AM
PDT T3
4:42 PM
CDT
3h 52m
M T W T F S S
Prices
UA1672+1
UA United
A21N
11:24 AM
PDT T3
5:07 PM
CDT
3h 43m
58%
M T W T F S S
Prices
AY4016+1
AY Finnair
738
12:33 PM
PDT T1
6:44 PM
CDT
4h 11m
M T W T F S S
Prices
UA314+3
UA United
739
12:39 PM
PDT T3
6:03 PM
CDT
3h 24m
58%
M T W T F S S
Prices
TK8628cs
TK Turkish
739
12:40 PM
PDT T3
6:32 PM
CDT
3h 52m
M T W T F S S
Prices
EI7498+2
EI Aer Lingus
738
12:46 PM
PDT T1
6:57 PM
CDT
4h 11m
75%
M T W T F S S
Prices
AY4115cs
AY Finnair
321
12:56 PM
PDT T1
7:19 PM
CDT
4h 23m
M T W T F S S
Prices
IB4312
Seat map
IB Iberia
321 Seat map
1:01 PM
PDT T1
7:24 PM
CDT
4h 23m
M T W T F S S
Prices
AC3347cs
AC Air Canada
739
1:15 PM
PDT T3
7:04 PM
CDT
3h 49m
57%
M T W T F S S
Prices
EI7417cs
EI Aer Lingus
737
1:16 PM
PDT T1
7:30 PM
CDT
4h 14m
75%
M T W T F S S
Prices
GF6415cs
GF Great Barrier Airlines
738
1:16 PM
PDT T1
7:30 PM
CDT
4h 14m
M T W T F S S
Prices
AA497
AA American
1:34 PM
PDT
6:41 PM
CDT
3h 7m
M T W T F S S
Prices
AA1497+2
Seat map
AA American
321 Seat map
1:40 PM
PDT T1
7:23 PM
CDT
3h 43m
M T W T F S S
Prices
GF4253+2
GF Great Barrier Airlines
321
1:49 PM
PDT T1
8:00 PM
CDT
4h 11m
M T W T F S S
Prices
AA1564
Starts Oct 5 Seat map
AA American
321 Seat map
2:03 PM
PDT T1
8:14 PM
CDT
4h 11m
M T W T F S S
Prices
AC3348cs
AC Air Canada
B39M
2:20 PM
PDT T3
8:12 PM
CDT
3h 52m
57%
M T W T F S S
Prices
AV2315cs
AV avianca
739
2:20 PM
PDT T3
8:12 PM
CDT
3h 52m
M T W T F S S
Prices
UA706+2
UA United
739
3:27 PM
PDT T3
9:17 PM
CDT
3h 50m
58%
M T W T F S S
Prices
AA2366
Seat map
AA American
738 Seat map
4:33 PM
PDT T1
10:21 PM
CDT
3h 48m
M T W T F S S
Prices
UA2320+1
UA United
739
4:40 PM
PDT T3
10:16 PM
CDT
3h 36m
58%
M T W T F S S
Prices
AA1520+3
Starts Oct 5 Seat map
AA American
738 Seat map
5:44 PM
PDT T1
11:30 PM
CDT
3h 46m
M T W T F S S
Prices
AA3077
AA American
A21N
11:50 PM
PDT T1 Red-eye
5:35 AM+1
CDT
3h 45m
M T W T F S S
Prices
F92146+1
F9 Frontier
A21N
11:50 PM
PDT T3 Red-eye
5:38 AM+1
CDT
3h 48m
54%
M T W T F S S
Prices
UA2102
UA United
738
11:50 PM
PDT T3 Red-eye
5:20 AM+1
CDT
3h 30m
58%
M T W T F S S
Prices
EI7250+3
EI Aer Lingus
738
6:30 AM
CDT T3
8:20 AM
PDT
3h 50m
58%
M T W T F S S
Prices
AA1592
Starts Oct 5 Seat map
AA American
321 Seat map
6:50 AM
CDT T3
9:01 AM
PDT
4h 11m
40%
M T W T F S S
Prices
AA2169
Seat map
AA American
321 Seat map
6:50 AM
CDT T3
8:52 AM
PDT
4h 2m
40%
M T W T F S S
Prices
AV2318cs
AV avianca
A21N
7:20 AM
CDT T1
9:27 AM
PDT
4h 7m
56%
M T W T F S S
Prices
AC3329cs
AC Air Canada
32Q
7:20 AM
CDT T3
9:27 AM
PDT
4h 7m
25%
M T W T F S S
Prices
UA574+2
UA United
32Q
7:20 AM
CDT T1
9:27 AM
PDT
4h 7m
22%
M T W T F S S
Prices
UA2811+1
UA United
739
9:29 AM
CDT T2
11:33 AM
PDT
4h 4m
22%
M T W T F S S
Prices
AC3327cs
AC Air Canada
739
10:05 AM
CDT T1
12:09 PM
PDT
4h 4m
25%
M T W T F S S
Prices
AA1497+2
Seat map
AA American
321 Seat map
10:06 AM
CDT T3
12:06 PM
PDT
4h
40%
M T W T F S S
Prices
RJ7704cs
Starts Oct 1
RJ Royal Jordanian
321
10:06 AM
CDT T3
12:06 PM
PDT
4h
M T W T F S S
Prices
AA1564
Starts Oct 5 Seat map
AA American
321 Seat map
11:00 AM
CDT T3
1:11 PM
PDT
4h 11m
40%
M T W T F S S
Prices
AC3328cs
AC Air Canada
7M9
11:08 AM
CDT T1
1:14 PM
PDT
4h 6m
25%
M T W T F S S
Prices
UA1803+1
UA United
7M9
12:29 PM
CDT T1
2:34 PM
PDT
4h 5m
22%
M T W T F S S
Prices
UA8105
UA United
A21N
12:54 PM
CDT
2:17 PM
PDT
3h 23m
22%
M T W T F S S
Prices
AC3326cs
AC Air Canada
739
1:00 PM
CDT T1
3:02 PM
PDT
4h 2m
25%
M T W T F S S
Prices
Y42193cs
Y4 Volaris
32Q
1:21 PM
CDT T5
3:30 PM
PDT
4h 9m
22%
M T W T F S S
Prices
F93647+2
F9 Frontier
A21N
1:21 PM
CDT T5
3:30 PM
PDT
4h 9m
37%
M T W T F S S
Prices
RJ7783cs
RJ Royal Jordanian
738
1:40 PM
CDT T3
3:31 PM
PDT
3h 51m
M T W T F S S
Prices
UA704+1
UA United
739
1:44 PM
CDT T1
3:47 PM
PDT
4h 3m
22%
M T W T F S S
Prices
AA1475+1
Seat map
AA American
738 Seat map
1:47 PM
CDT T3
3:47 PM
PDT
4h
40%
M T W T F S S
Prices
AZ4465cs
AZ ITA
739
3:35 PM
CDT T1
5:44 PM
PDT
4h 9m
12%
M T W T F S S
Prices
OS7701cs
OS Austrian
739
3:37 PM
CDT T1
5:46 PM
PDT
4h 9m
24%
M T W T F S S
Prices
UA1875+6
UA United
739
4:22 PM
CDT T1
6:45 PM
PDT
4h 23m
22%
M T W T F S S
Prices
SN8861cs
SN Brussels Airlines
739
4:30 PM
CDT T1
6:39 PM
PDT
4h 9m
13%
M T W T F S S
Prices
LX3296cs
LX Swiss
739
4:30 PM
CDT T1
6:39 PM
PDT
4h 9m
39%
M T W T F S S
Prices
UA365
Starts Sep 24
UA United
7M9
4:35 PM
CDT T1
6:43 PM
PDT
4h 8m
22%
M T W T F S S
Prices
AZ4517cs
AZ ITA
738
4:45 PM
CDT T1
6:54 PM
PDT
4h 9m
12%
M T W T F S S
Prices
UA1851+1
UA United
739
4:45 PM
CDT T2
6:54 PM
PDT
4h 9m
22%
M T W T F S S
Prices
EI7394+2
Starts Oct 5 Seat map
EI Aer Lingus
738 Seat map
4:58 PM
CDT T3
7:14 PM
PDT
4h 16m
58%
M T W T F S S
Prices
AA1353
Starts Oct 5 Seat map
AA American
738 Seat map
4:59 PM
CDT T3
7:15 PM
PDT
4h 16m
40%
M T W T F S S
Prices
EI7326cs
EI Aer Lingus
738
5:31 PM
CDT T3
7:29 PM
PDT
3h 58m
58%
M T W T F S S
Prices
UA1703
Starts Sep 24
UA United
32Q
6:20 PM
CDT T1
8:28 PM
PDT
4h 8m
22%
M T W T F S S
Prices
AZ4496
Starts Sep 24
AZ ITA
32Q
6:20 PM
CDT T1
8:28 PM
PDT
4h 8m
12%
M T W T F S S
Prices
GF6539cs
GF Great Barrier Airlines
738
6:28 PM
CDT T3
8:28 PM
PDT
4h
48%
M T W T F S S
Prices
RJ7228cs
RJ Royal Jordanian
738
6:37 PM
CDT T3
8:37 PM
PDT
4h
M T W T F S S
Prices
QR8603
QR Qatar
738
6:37 PM
CDT T3
8:37 PM
PDT
4h
42%
M T W T F S S
Prices
AA3292+3
Seat map
AA American
738 Seat map
8:22 PM
CDT T3
12:04 AM+1
PDT
5h 42m
40%
M T W T F S S
Prices
F92145+1
Seat map
F9 Frontier
32Q Seat map
8:45 PM
CDT T5
10:44 PM
PDT
3h 59m
37%
M T W T F S S
Prices
LX3258cs
LX Swiss
A21N
8:45 PM
CDT T1
10:52 PM
PDT
4h 7m
39%
M T W T F S S
Prices
Y42328cs
Y4 Volaris
32Q
8:55 PM
CDT T5
11:05 PM
PDT
4h 10m
22%
M T W T F S S
Prices
RJ7247+2
RJ Royal Jordanian
738
8:59 PM
CDT T3
10:54 PM
PDT
3h 55m
M T W T F S S
Prices
AY4118+2
AY Finnair
738
8:59 PM
CDT T3
10:54 PM
PDT
3h 55m
M T W T F S S
Prices
EI7440cs
EI Aer Lingus
738
8:59 PM
CDT T3
10:54 PM
PDT
3h 55m
58%
M T W T F S S
Prices
AY4102cs
AY Finnair
321
9:00 PM
CDT T3
11:00 PM
PDT
4h
M T W T F S S
Prices
AA3323+5
Seat map
AA American
321 Seat map
9:00 PM
CDT T3
11:00 PM
PDT
4h
40%
M T W T F S S
Prices
RJ7626cs
RJ Royal Jordanian
321
9:07 PM
CDT T3
11:00 PM
PDT
3h 53m
M T W T F S S
Prices
IB4197cs
IB Iberia
A21N
9:07 PM
CDT T3
11:00 PM
PDT
3h 53m
43%
M T W T F S S
Prices
GF4334cs
GF Great Barrier Airlines
321
9:14 PM
CDT T3
11:07 PM
PDT
3h 53m
48%
M T W T F S S
Prices
AC3325cs
AC Air Canada
A21N
9:20 PM
CDT T2
11:20 PM
PDT
4h
25%
M T W T F S S
Prices
UA777+5
UA United
32Q
11:17 PM
CDT T1 Red-eye
1:19 AM+1
PDT
4h 2m
22%
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
OMA Omaha 5h 17m G4JTLWN AAACAS Omaha (OMA) to Chicago flights
MCI Kansas City 5h 22m F9WNY4 AAACAS Kansas City (MCI) to Chicago flights
DSM Des Moines 5h 22m G4WN AAACAS Des Moines (DSM) to Chicago flights
STL St Louis 5h 24m EJAF9WN AAACAS St Louis (STL) to Chicago flights
DEN Denver 5h 28m ACCMF9 AAACAY Denver (DEN) to Chicago flights
ABQ Albuquerque 5h 30m WN AAACAY Albuquerque (ABQ) to Chicago flights
MKE Milwaukee 5h 30m WN AAACAS Milwaukee (MKE) to Chicago flights
COS Colorado Springs 5h 31m WNWUP AAQRUA Colorado Springs (COS) to Chicago flights
SLC Salt Lake City 5h 33m AMDLEJA AAAYAZ Salt Lake City (SLC) to Chicago flights
TUL Tulsa 5h 34m G4WN AAACAS Tulsa (TUL) to Chicago flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Las Vegas to Chicago
6 carriers, 362 flights/week nonstop.
6 Airlines 1,511 mi 3h 52m nonstop +2h ahead

LAS–ORD is served by 6 airlines with nonstop service. American Airlines, United Airlines and Frontier lead the route. The flight covers 1,511 miles in approximately 3h 52m. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop LAS–ORD service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AA American Airlines Also: AY, BA, EI, GF, IB, QR, RJ 64 321, 738, A21N 3h07-4h11 87% Oneworld AY, BA, EI, GF, IB, QR, RJ
UA United Airlines Also: AC, AV, AZ, EK, LH, LX, OS, SN, TK 56 738, 739, 7M9, A21N 3h24-3h52 87% Star Alliance AC, AV, AZ, EK, LH, LX, OS, SN, TK
F9 Frontier Also: Y4 7 A21N 3h48 87% Y4
DL Delta Air Lines 0 87% SkyTeam
NK Spirit Airlines 0 87%
WN Southwest Airlines 0 87%
Aircraft on this route
321 Airbus A321 – AA, AY, BA, GF, IB, QR
32Q Airbus A321neo – EK, OS, SN
737 Boeing 737-700 – EI
738 Boeing 737-800 – AA, AY, BA, EI, GF, IB, QR, RJ, UA
739 Boeing 737-900 – AC, AV, AZ, LH, LX, TK, UA
7M9 Boeing 737 MAX 9 – AZ, UA
A21N Airbus A321neo – AA, AC, F9, LX, UA
B39M Boeing 737 MAX 9 – AC
Alliance coverage
Oneworld: AA (64 flights/wk, 50%)
Star Alliance: UA (56 flights/wk, 44%)
Unaffiliated: F9 + NK + WN (7 flights/wk, 6%)
SkyTeam: DL (0 flights/wk, 0%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, LAS to ORD direction.
Mon
50
flights
Tue
52
flights
Wed
52
flights
Thu
52
flights
Fri
52
flights
Sat
52
flights
Sun
52
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
53
Nonstop flights
362
Outbound / wk
330
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for LAS to ORD.
1-STOP
One-Stop Connections
119
Hubs
~5h
Fastest
~39h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
5,627
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
LAS → ORD
87%
Generally reliable. Most flights run on time.
Departing
87%
Arriving
97%
Return
ORD → LAS
60%
Moderate delays possible. Allow buffer time.
Departing
60%
Arriving
93%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. LAS delays → ORD delays →

Other ways to reach Chicago from Las Vegas

Nearby airports with service to Chicago O'Hare International Airport.
Metric LAS→ORD SGU→ORD PSP→ORD
Distance from LAS 112 mi 174 mi
Nonstop airlines 6 1 5
Weekly flights 362 1 14
Flight time 3h 52m 3h 43m 4h 2m
Departure OTP 87%
Airports within 200 miles of LAS with service to Chicago O'Hare International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
+2h
Chicago is 2 hours ahead of Las Vegas.
LAS: PDT · ORD: CDT

When it's 6:00 PM in Las Vegas, it's 8:00 PM in Chicago.
Distance & Flight Time
1,511 mi / 2,432 km
Nonstop flight time is approximately 3h 52m gate to gate.
Getting to LAS

The airport is 5 miles from the Strip; ride-shares and taxis take 10–20 minutes from the Strip ($15–25). There is no rail link.The Las Vegas Monorail does not serve the airport. RTC bus Route 109 connects the airport to the Strip ($2, 20–30 min), but luggage handling is inconvenient. Hotel shuttles from major resorts are the most hassle-free option and often free for guests.

Getting from ORD

CTA Blue Line runs 24/7 from O'Hare to downtown Chicago (45 min, $5). Taxis use a flat-rate zone system; downtown is around $40–45 plus tip. Ride-shares are typically $30–50.The Airport Transit System (ATS) connects all terminals and parking. Metra commuter rail does not serve O'Hare directly; transfer downtown via Blue Line.

Chicago Climate

Continental climate with four distinct seasons. Summers are warm and humid (25–32°C) with afternoon thunderstorms. Winters are cold (−10 to −2°C) with heavy snowfall that regularly delays flights December through March.

Spring and fall are mild but unpredictable. Pack layers. Lake Michigan moderates temperatures near the lakefront, but O'Hare sits inland and runs colder.

LAS–ORD Quick Facts

Key statistics for the Las Vegas to Chicago route.
Route details
Distance1,511 mi / 2,432 km
Flight time3h 52m
Time difference+2 hours
Airlines (nonstop)6
Weekly flights362 out / 330 return
1-stop connectionsAvailable
Origin: LAS
IATA / ICAOLAS / KLAS
TimezoneAmerica/Los_Angeles
Passengers/yr56.5M
Elevation2,181 ft / 665 m
Destination: ORD
IATA / ICAOORD / KORD
TimezoneAmerica/Chicago
Passengers/yr80.0M
Elevation680 ft / 207 m

Frequently Asked Questions

Common questions about LAS to ORD flights.
Nonstop flights from Harry Reid International Airport to Chicago O'Hare International Airport take about 3h 52m gate to gate. The route covers 1,511 miles.
6 airlines operate flights from LAS to ORD: American Airlines, United Airlines, Frontier, Delta Air Lines, and others.
This route has frequent daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Eppley Airfield, Kansas City and Des Moines.
On a single ticket, yes. Your bags are checked through to ORD and move between planes without you. On two separate tickets you collect your bags at the connecting airport and recheck them, so build in extra layover time.
Chicago is 2 hours ahead of Las Vegas.
Yes, return flights from ORD to LAS are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include SGU, PSP and ONT. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.
United flights from Las Vegas arrive at O'Hare Terminal 1. American arrives at Terminal 3. Spirit uses Terminal 3 as well. Frontier and other ultra-low-cost carriers may use Terminal 2 or 3 depending on gate assignments. Check your airline's terminal before heading to ground transport.
LAS sits in the busy Southern California TRACON airspace and can see ground delay programs when weather or traffic congestion backs up flow into Los Angeles Center. This is more common on Sunday afternoons when leisure travelers depart en masse. Friday evenings heading to Vegas are usually clean departures; Sundays heading home are the risk window.
Several carriers run late-night departures from LAS in the 23:00 to 01:00 window that land at O'Hare around 05:30 to 07:30 Central time. United and American both schedule red-eye service on this corridor. The flights are popular with gamblers returning home and business travelers squeezing in an extra day in Vegas.

Las Vegas to Chicago O'Hare: Leisure Corridor with Business Red-Eye Demand

LAS–ORD is a high-frequency transcontinental corridor connecting the country's entertainment capital with the Midwest's largest hub. United, American, Southwest, Spirit, and Frontier all compete for the roughly 140 weekly departures. Flight time westbound runs 3 hours 45 minutes; eastbound is closer to 3 hours 15 minutes with typical tailwinds. The passenger mix skews heavily leisure, which drives pronounced weekend capacity surges and deeply discounted midweek fares from both ultra-low-cost carriers and the mainline carriers fighting for the same seats.

O'Hare as an Onward Connection

Travelers routing through Chicago will find O'Hare's United hub offers connections to nearly every midsize US city. American's Terminal 3 operation provides a secondary domestic bank. The Blue Line CTA train runs 24 hours between O'Hare and the Loop, taking 45 minutes and costing $5, making it the most reliable option from late evening arrivals when taxi and rideshare surge pricing is common. O'Hare winter weather is the primary operational risk on this route: deicing and ground stops can add 60 to 90 minutes to departure times between December and February.