Buffalo to San Juan (BUF–SJU) — Airlines, Schedules & Connections

BUF Airport Page →
1,849 mi airlines 4/wk
On-time Some delays Frequent delays
Flight Schedule 2 flights Verified 8h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
B6635
B6 JetBlue
320
7:20 AM
EDT
11:14 AM
AST
3h 54m
M T W T F S S
Prices
B6634
B6 JetBlue
320
7:11 PM
AST TA
11:59 PM
EDT
4h 48m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
Buffalo to San Juan
1 carrier, 4 flights/week nonstop.
1 Airlines 4 Flights/wk 1,849 mi 3h 54m nonstop 55 1-stop hubs

BUF–SJU is served by 1 airline with nonstop service. JetBlue leads the route. The flight covers 1,849 miles in approximately 3h 54m. Beyond nonstop, 55 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop BUF–SJU service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
B6 JetBlue 4 320 3h54 100%
Aircraft on this route
320 Airbus A320 – B6
Alliance coverage
Unaffiliated: B6 (4 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, BUF to SJU direction.
Mon
1
flight
Tue
0
flights
Wed
1
flight
Thu
0
flights
Fri
1
flight
Sat
1
flight
Sun
0
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
1
Nonstop flights
4
Outbound / wk
4
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for BUF to SJU.
1-STOP
One-Stop Connections
55
Hubs
~5h
Fastest
~29h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
788
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.

Other ways to reach San Juan from Buffalo

Nearby airports with service to Luis Munoz Marin International Airport.
Metric BUF→SJU YYZ→SJU
Distance from BUF 68 mi
Nonstop airlines 1 4
Weekly flights 4 2
Flight time 3h 54m 4h 25m
Departure OTP 100%
Airports within 200 miles of BUF with service to Luis Munoz Marin International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
0h
San Juan is 0 hours the same as Buffalo.
BUF: EDT · SJU: AST

When it's 6:00 PM in Buffalo, it's 6:00 PM in San Juan.
Distance & Flight Time
1,849 mi / 2,976 km
Nonstop flight time is approximately 3h 54m.
Visa & Entry

Puerto Rico is an unincorporated US territory. US citizens travel to Puerto Rico with the same freedom as traveling between US states. No passport is needed. A valid government-issued photo ID (driver's license or state ID) is sufficient. There are no immigration or customs formalities for domestic travelers. At Luis Munoz Marin International Airport (SJU) in San Juan, you walk off the plane and collect your luggage with no border checkpoint.

Puerto Rico uses US currency, US federal law, and the US Postal Service. Your US health insurance, driver's license, and cell phone plan work here. Mail delivery uses standard US ZIP codes (006xx to 009xx). Puerto Rico is in the Atlantic Standard Time zone (AST), UTC-4, which is 1 hour ahead of US Eastern Time during daylight saving time and the same as Eastern during standard time (Puerto Rico does not observe daylight saving). Old San Juan's colonial architecture, the El Yunque National Rainforest (the only tropical rainforest in the US National Forest System), and Flamenco Beach on Culebra are the top draws.

Direct flights from New York JFK to San Juan run about 3 hours 30 minutes on JetBlue, Delta, United, and Spirit. Miami to SJU runs about 2 hours 30 minutes. Fort Lauderdale, Orlando, Atlanta, Philadelphia, Chicago, Dallas, and dozens of other US cities have nonstop service. SJU is the busiest airport in the Caribbean and a hub for flights to the US Virgin Islands, the Eastern Caribbean, and South America. Because this is a domestic flight, no TSA PreCheck or Global Entry distinctions apply beyond what you use on any US domestic flight. Car rental starts at $30 per day. The Tren Urbano metro runs a single line from Bayamon to Sagrado Corazon in Santurce for $0.75 per ride. AMA buses cover the San Juan metro area at $0.75.

BUF–SJU Quick Facts

Key statistics for the Buffalo to San Juan route.
Route details
Distance1,849 mi / 2,976 km
Flight time3h 54m
Time difference0 hours
Airlines (nonstop)1
Weekly flights4 out / 4 return
1-stop connections55 hubs
Origin: BUF
IATA / ICAOBUF / KBUF
TimezoneAmerica/New_York
Passengers/yr5.0M
Elevation728 ft / 222 m
Destination: SJU
IATA / ICAOSJU / TJSJ
TimezoneAmerica/Puerto_Rico
Passengers/yr13.0M
Elevation9 ft / 3 m

Frequently Asked Questions

Common questions about BUF to SJU flights.
Nonstop flights from Buffalo Niagara International Airport to Luis Munoz Marin International Airport take approximately 3h 54m. The route covers 1,849 miles.
1 airline operates nonstop service: JetBlue.
There are approximately 4 nonstop flights per week from BUF to SJU. The return direction has about 4 weekly flights.
Yes, 1-stop connections are available through MMU, TEB, FRG, OPF, PDK, PHF, CHS, PIT, HPN, ORL, VRB, BDL, PBI, BCT, PIE, STL, TMB, AVL, APF, JAX, DCA, SRQ, BED, LGA, MEM, FXE, YUL, AUA, PLS, AEX, MIA, MSP, DAL, BNA, ASE, PHX, LAS, SNA, IAD, BOS, FLL, BWI, JFK, PHL, MCO, EWR, TPA, CLT, RDU, ATL, DTW, ORD, DFW, MDW and DEN. These options provide additional schedule flexibility.
Yes, return flights from SJU to BUF are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include YYZ. 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.

Flights from BUF to SJU

Buffalo Niagara International Airport (BUF) and Luis Munoz Marin International Airport (SJU) are connected by nonstop service from JetBlue. With 4 weekly departures, this is a regularly served route.

BUF to SJU Flight Duration and Schedule

Nonstop flight time from BUF to SJU ranges from 3 hours 54 minutes. The route covers a distance of 1,849 miles (2,976 km). There are approximately 4 weekly flights outbound and 4 return, totaling 8 flights per week in both directions.

Connecting Options and Alternatives

55 one-stop connections are available, with the fastest taking approximately 5 hours via MMU. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Toronto (YYZ).