Houston to Atlanta (IAH–ATL) — Airlines, Schedules & Connections
Flight Schedule
120 flights
Verified 8h ago
Flight
Airline
AC
Dep
Arr
Dur
OTP
Sched
Outbound Day
Return Day
✈ Nonstop
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
Aircraft
Terminals
On-Time
performance
Schedule
Unknown
No flights match your filters.
No nonstop flights on this route. connecting options below.
✦ 1-Stop
Hide ▲
→
Separate tickets — book each leg independently. Collect and recheck bags at .
Hub OTP
No data
Combos
No data
Fastest
estimated
Schedule
Unknown
Leg 1
Leg 2
✧ 2-Stop
Hide ▲
Separate tickets — book each leg independently. Collect and recheck bags at each hub.
bottleneck
Layover
OTP
No data
Combos
No data
bottleneck
Layover
OTP
No data
Combos
No data
Leg 1
Leg 2
Leg 3
Houston to Atlanta
5 carriers, 335 flights/week nonstop.
5 Airlines
335 Flights/wk
688 mi
1h 51m nonstop
+1h ahead
201 1-stop hubs
IAH–ATL is served by 5 airlines with nonstop service. Delta Air Lines, United Airlines and Frontier lead the route. The flight covers 688 miles in approximately 1h 51m. Beyond nonstop, 201 hubs offer 1-stop connections.
Carriers on this route
Airline Landscape
All carriers operating nonstop IAH–ATL service, compared side by side.
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| DL Delta Air Lines Also: AF, AM, KE, LA, SK, VS, WS | 75 | 320, 321 | 1h51-2h29 | SkyTeam | AF, AM, KE, LA, SK, VS, WS | |
| UA United Airlines Also: EK, NZ | 62 | 319, 737, 738, 739, 73G, 7M9, E7W | 1h55-2h21 | Star Alliance | EK, NZ | |
| F9 Frontier Also: Y4 | 26 | 32N, 32Q, A21N | 2h14-2h23 | – | Y4 | |
| NK Spirit Airlines | 24 | 320, 32B | 1h57-2h03 | – | – | |
| GXA GXA | 1 | – | – | – | – |
Aircraft on this route
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule
Weekly Schedule Pattern
Nonstop flight frequency by day of week, IAH to ATL direction.
Mon
48
flights
Tue
46
flights
Wed
45
flights
Thu
48
flights
Fri
50
flights
Sat
45
flights
Sun
53
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
57
Nonstop flights
335
Outbound / wk
325
Return / wk
Connections
Connection Landscape
Beyond nonstop. 1-stop and 2-stop options for IAH to ATL.
1-STOP
One-Stop Connections
201
Hubs
~3h
Fastest
~50h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
6,481
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.
Alternatives
Other ways to reach Atlanta from Houston
Nearby airports with service to Hartsfield Jackson Atlanta International Airport.
| Metric | IAH→ATL | HOU→ATL | AUS→ATL |
|---|---|---|---|
| Distance from IAH | – | 24 mi | 140 mi |
| Nonstop airlines | 5 | 12 | 11 |
| Weekly flights | 335 | 131 | 285 |
| Flight time | 1h 51m | 1h 50m | 1h 50m |
| Departure OTP | 44% | – | – |
Houston (HOU) to Atlanta flights · Austin (AUS) to Atlanta flights · Fort Cavazos (GRK) to Atlanta flights
Airports within 200 miles of IAH with service to Hartsfield Jackson Atlanta International Airport.
Know before you go
Travel Essentials
Practical planning for this route.
Time Difference
+1h
Atlanta is 1 hour
ahead of
Houston.
IAH: CDT · ATL: EDT
When it's 6:00 PM in Houston, it's 7:00 PM in Atlanta.
IAH: CDT · ATL: EDT
When it's 6:00 PM in Houston, it's 7:00 PM in Atlanta.
Distance & Flight Time
688 mi / 1,108 km
Nonstop flight time is approximately 1h 51m to 2h 29m.
Getting to IAH
IAH has no direct rail link to downtown Houston. The IAH Express bus runs from Houston Amtrak/Greyhound station via Park & Ride to Terminal C (60–90 min, $1.25 with METRO Q card). This is the only transit option; Houston's rail network does not reach the airport.Taxis from downtown Houston cost $50–70 and take 40–60 minutes. Ride-hails (Uber, Lyft) are typically $35–55. IAH sits 23 miles north of downtown on the North Freeway (I-45); traffic is heavy during morning and evening rush. Remote economy parking lots serve all terminals via shuttle.
Getting from ATL
MARTA Gold Line connects the airport to downtown Atlanta (16 min, $2.50) and Buckhead (30 min). Taxis have a flat rate of $30 to downtown, $38 to Buckhead. Ride-shares are typically $20–35.
The SkyTrain people mover links the Domestic and International terminals, rental car center, and Georgia International Convention Center.
Atlanta Climate
Humid subtropical climate. Summers are hot and humid (30–35°C) with frequent afternoon thunderstorms that cause flight delays June through August. Winters are mild (2–10°C) with rare snowfall. Ice storms can shut down the airport when they hit.
Spring brings severe weather risk including tornadoes. Fall (September–November) is the most pleasant season for travel.
Facts
IAH–ATL Quick Facts
Key statistics for the Houston to Atlanta route.
Route details
Distance688 mi / 1,108 km
Flight time1h 51m to 2h 29m
Time difference+1 hour
Airlines (nonstop)5
Weekly flights335 out / 325 return
1-stop connections201 hubs
Origin: IAH
Full nameGeorge Bush Intercontinental Airport
IATA / ICAOIAH / KIAH
TimezoneAmerica/Chicago
Passengers/yr46.7M
Elevation97 ft / 30 m
FAQ
Frequently Asked Questions
Common questions about IAH to ATL flights.
Nonstop flights from George Bush Intercontinental Airport to Hartsfield Jackson Atlanta International Airport take approximately 1h 51m to 2h 29m. The route covers 688 miles.
5 airlines operate nonstop service: Delta Air Lines, Frontier, GXA, Spirit Airlines and United Airlines. Plus 10 codeshare partners.
There are approximately 335 nonstop flights per week from IAH to ATL. The return direction has about 325 weekly flights.
Yes, 1-stop connections are available through BRO, CWF, ABY, SLN, DAL, DHN, SVH, AVL, ISM, HHH, SUS, LUK, PIE, APF, CXO, ILN, BCT, TMB, MLB, PDK, DAY, LAL, PWK, MKC, CPS, INT, MDW, TLC, TEB, FRG, CZM, RIL, SLP, HPN, SCF, MTJ, BED, ALB, HDN, EGE, SBD, VNY, PVR, JAC, GJT, VCV, RTB, FAT, GEG, BFI, OAK, BUR, PSP, YEG, SJD, GND, SAL, LIR, PUJ, SAP, BGI, BZE, DEN, GCM, KEF, OKC, CVG, CUN, DSM, DFW, CHA, CHS, SRQ, MOB, SHV, PNS, IND, FLL, ECP, BHM, AEX, MEM, AUS, BNA, ORF, TUL, DCA, LGG, MCI, JAX, LIT, RSW, PIT, STL, TYS, SJC, GPT, LUX, BRU, MAN, MCO, MKE, SDF, DTW, CLE, MSY, GRR, MIA, ONT, HHN, TPA, TUS, SAT, HNL, JAN, CLT, XNA, GSP, MXP, BTR, BWI, ORD, HSV, LFT, PLS, CMH, MEX, RIC, SGF, ICT, PBI, MSP, RDU, SAV, YYC, IAD, OMA, RNO, SBN, SAN, BDL, MGM, MTY, LAS, EYW, EWR, PHL, ANC, LAX, CPH, SCL, ELP, YYZ, JFK, YUL, UIO, PDX, CDG, COS, ASE, PHX, SEA, BTV, SFO, ABQ, LGA, BOS, SJO, SMF, SLC, YVR, SNA, AMS, BOG, LHR, SJU, TVC, GDL, QRO, BJX, BZN, MBJ, GUA, NAS, LIM, CQF, TQO, PTY, RAP, AUA, BON, EZE, STT, FCO, GIG, GRU, IST, FRA, DOH, MUC and HND. These options provide additional schedule flexibility.
Atlanta is 1 hour ahead of Houston.
Yes, return flights from ATL to IAH are available. Use the direction toggle at the top to view the return schedule.
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 Airlines, the dominant carrier at IAH, operates from Terminals A, B, C, D, and E at George Bush Intercontinental. ATL-bound flights depart from multiple United concourses depending on the bank and aircraft type; check the departure screen on arrival as gate assignments are dynamic. At ATL, United arrives at Concourse E (the International Concourse) or domestic concourses depending on the service. Delta operates IAH–ATL as well, arriving at its home concourses at Hartsfield.
United and Delta both run multiple daily IAH–ATL departures. United's Houston hub and Delta's Atlanta hub are each among the largest in the US, giving both carriers structural reasons to maintain dense service on this pairing. Combined, the route typically sees 6–10 daily departures. The flight takes about 1 hour 55 minutes. Southwest also serves HOU–ATL from Houston Hobby, which is an alternative for passengers staying on the south side of the metro.
Houston is one of the most storm-prone major airport cities in the US, with a convective season running April through October. IAH experiences ground stops multiple times per summer when severe convective cells move through the terminal area or the departure corridor toward the northeast. When IAH ground stops coincide with ATL arrival flow management programs, delays compound at both ends. The May–September window carries the highest combined weather risk; morning departures from IAH before 09:00 typically clear the daily storm cycle.
Houston Intercontinental to Atlanta: Two of the Country's Largest Hubs, Back to Back
IAH–ATL links United's largest domestic hub with Delta's global mega-hub, making this corridor one of the most strategically significant in the US network. Both airlines maintain dense frequency: United from its IAH hub and Delta from its ATL home base. Block time is under 2 hours. The route carries a high proportion of connecting passengers feeding onward from Houston's Latin America and Gulf Coast network into Atlanta's Southeast, Caribbean, and transatlantic connections, or the reverse. Energy sector business traffic between Houston and Atlanta supplements the connection volume throughout the week.
Hub-to-Hub Dynamics and Weather Exposure
When two major hubs face simultaneous weather disruption, the cascading effects travel across both airlines' entire networks. IAH and ATL together handle hundreds of connections daily, and delays on IAH–ATL propagate into missed connections at both ends. Houston's spring and summer convective exposure is among the highest of any US hub city. ATL generates its own convective events in summer and ice storm closures in winter. Despite the weather risk, the frequency of available flights means passengers are typically rebooked within 2–3 hours even on disrupted days. Both airports have extensive lounges and same-day standby processes for hub-based carriers.