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Buffalo → Denver

Dec 22, 2026 · return Jan 5, 2027

BUF → DEN1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Tue, Dec 22 – Tue, Jan 5

Southwest Airlines
5:10 amBUF
3h 50m
Nonstop
7:00 amDEN
Southwest Airlines
3:45 pmDEN
3h 5m
Nonstop
8:50 pmBUF

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Jan 5

United Airlines
8:50 amBUF
3h 45m
Nonstop
10:35 amDEN
United Airlines
5:25 pmDEN
3h 8m
Nonstop
10:33 pmBUF

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Jan 5

Southwest Airlines
2:40 pmBUF
3h 50m
Nonstop
4:30 pmDEN
Southwest Airlines
3:45 pmDEN
3h 5m
Nonstop
8:50 pmBUF

Round-trip total · 1 adult · Taxes included

One-stop flights

Tue, Dec 22 – Tue, Jan 5

American Airlines
6:49 pmBUF
6h 8m
ORD · 1h 6m
10:57 pmDEN
American Airlines
2:35 pmDEN
6h 58m
ORD · 2h 35m
11:33 pmBUF

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Jan 5

Delta Air Lines
12:00 pmBUF
7h 10m
DTW · 2h 43m
5:10 pmDEN
Delta Air Lines
10:39 amDEN
6h 34m
DTW · 2h 36m
7:13 pmBUF

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Jan 5

Southwest Airlines
2:00 pmBUF
6h 10m
MDW · 1h 35m
6:10 pmDEN
Southwest Airlines
3:45 pmDEN
3h 5m
Nonstop
8:50 pmBUF

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Jan 5

Southwest Airlines
11:35 amBUF
6h 45m
BWI · 1h 30m
4:20 pmDEN
Southwest Airlines
3:45 pmDEN
3h 5m
Nonstop
8:50 pmBUF

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Jan 5

Delta Air Lines
4:05 pmBUF
6h 14m
MSP · 1h 27m
8:19 pmDEN
Delta Air Lines
10:39 amDEN
6h 34m
DTW · 2h 36m
7:13 pmBUF

Round-trip total · 1 adult · Taxes included

Tue, Dec 22 – Tue, Jan 5

Delta Air Lines
3:20 pmBUF
7h 15m
JFK · 1h 6m
8:35 pmDEN
Delta Air Lines
10:39 amDEN
6h 34m
DTW · 2h 36m
7:13 pmBUF

Round-trip total · 1 adult · Taxes included

Make this trip yours

BUF ⇄ DEN

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-22 → 2027-01-05Southwest AirlinesWN1316 / WN988$399.502026-10-29T00:53:56Z
2026-12-22 → 2027-01-05United AirlinesUA1727 / UA731$434.752026-10-29T00:53:56Z
2026-12-22 → 2027-01-05American AirlinesAA2306 + AA1387 / AA1277 + AA564$387.752026-10-29T00:53:56Z
2026-12-22 → 2027-01-05Delta Air LinesDL4636 + DL2431 / DL1113 + DL3843$411.252026-10-29T00:53:56Z
2026-12-22 → 2027-01-05Southwest AirlinesWN818 / WN988$399.502026-10-29T00:53:56Z
2026-12-22 → 2027-01-05Southwest AirlinesWN726 + WN4606 / WN988$379.252026-10-29T00:53:56Z
2026-12-22 → 2027-01-05Southwest AirlinesWN1323 + WN994 / WN988$379.252026-10-29T00:53:56Z
2026-12-22 → 2027-01-05Delta Air LinesDL8783 + DL2931 / DL1113 + DL3843$411.252026-10-29T00:53:56Z
2026-12-22 → 2027-01-05Delta Air LinesDL5296 + DL457 / DL1113 + DL3843$411.252026-10-29T00:53:56Z

2026-12-22 → 2027-01-05 · $399.50

  • Southwest Airlines WN1316: BUF 2026-12-22 05:10:00 → DEN 2026-12-22 07:00:00; nonstop; 230 minutes. Local airport times.
  • Southwest Airlines WN988: DEN 2027-01-05 15:45:00 → BUF 2027-01-05 20:50:00; nonstop; 185 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $434.75

  • United Airlines UA1727: BUF 2026-12-22 08:50:00 → DEN 2026-12-22 10:35:00; nonstop; 225 minutes. Local airport times.
  • United Airlines UA731: DEN 2027-01-05 17:25:00 → BUF 2027-01-05 22:33:00; nonstop; 188 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $387.75

  • American Airlines AA2306 / AA1387: BUF 2026-12-22 18:49:00 → DEN 2026-12-22 22:57:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • AA2306: BUF 2026-12-22 18:49:00 → ORD 2026-12-22 19:59:00; layover at ORD: 66 minutes.
    • AA1387: ORD 2026-12-22 21:05:00 → DEN 2026-12-22 22:57:00.
  • American Airlines AA1277 / AA564: DEN 2027-01-05 14:35:00 → BUF 2027-01-05 23:33:00; 1 stop(s) via ORD; 418 minutes. Local airport times.
    • AA1277: DEN 2027-01-05 14:35:00 → ORD 2027-01-05 18:14:00; layover at ORD: 155 minutes.
    • AA564: ORD 2027-01-05 20:49:00 → BUF 2027-01-05 23:33:00.

2026-12-22 → 2027-01-05 · $411.25

  • Delta Air Lines DL4636 / DL2431: BUF 2026-12-22 12:00:00 → DEN 2026-12-22 17:10:00; 1 stop(s) via DTW; 430 minutes. Local airport times.
    • DL4636: BUF 2026-12-22 12:00:00 → DTW 2026-12-22 13:17:00; layover at DTW: 163 minutes.
    • DL2431: DTW 2026-12-22 16:00:00 → DEN 2026-12-22 17:10:00.
  • Delta Air Lines DL1113 / DL3843: DEN 2027-01-05 10:39:00 → BUF 2027-01-05 19:13:00; 1 stop(s) via DTW; 394 minutes. Local airport times.
    • DL1113: DEN 2027-01-05 10:39:00 → DTW 2027-01-05 15:20:00; layover at DTW: 156 minutes.
    • DL3843: DTW 2027-01-05 17:56:00 → BUF 2027-01-05 19:13:00.

2026-12-22 → 2027-01-05 · $399.50

  • Southwest Airlines WN818: BUF 2026-12-22 14:40:00 → DEN 2026-12-22 16:30:00; nonstop; 230 minutes. Local airport times.
  • Southwest Airlines WN988: DEN 2027-01-05 15:45:00 → BUF 2027-01-05 20:50:00; nonstop; 185 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $379.25

  • Southwest Airlines WN726 / WN4606: BUF 2026-12-22 14:00:00 → DEN 2026-12-22 18:10:00; 1 stop(s) via MDW; 370 minutes. Local airport times.
    • WN726: BUF 2026-12-22 14:00:00 → MDW 2026-12-22 14:50:00; layover at MDW: 95 minutes.
    • WN4606: MDW 2026-12-22 16:25:00 → DEN 2026-12-22 18:10:00.
  • Southwest Airlines WN988: DEN 2027-01-05 15:45:00 → BUF 2027-01-05 20:50:00; nonstop; 185 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $379.25

  • Southwest Airlines WN1323 / WN994: BUF 2026-12-22 11:35:00 → DEN 2026-12-22 16:20:00; 1 stop(s) via BWI; 405 minutes. Local airport times.
    • WN1323: BUF 2026-12-22 11:35:00 → BWI 2026-12-22 12:50:00; layover at BWI: 90 minutes.
    • WN994: BWI 2026-12-22 14:20:00 → DEN 2026-12-22 16:20:00.
  • Southwest Airlines WN988: DEN 2027-01-05 15:45:00 → BUF 2027-01-05 20:50:00; nonstop; 185 minutes. Local airport times.

2026-12-22 → 2027-01-05 · $411.25

  • Delta Air Lines DL8783 / DL2931: BUF 2026-12-22 16:05:00 → DEN 2026-12-22 20:19:00; 1 stop(s) via MSP; 374 minutes. Local airport times.
    • DL8783: BUF 2026-12-22 16:05:00 → MSP 2026-12-22 17:32:00; layover at MSP: 87 minutes.
    • DL2931: MSP 2026-12-22 18:59:00 → DEN 2026-12-22 20:19:00.
  • Delta Air Lines DL1113 / DL3843: DEN 2027-01-05 10:39:00 → BUF 2027-01-05 19:13:00; 1 stop(s) via DTW; 394 minutes. Local airport times.
    • DL1113: DEN 2027-01-05 10:39:00 → DTW 2027-01-05 15:20:00; layover at DTW: 156 minutes.
    • DL3843: DTW 2027-01-05 17:56:00 → BUF 2027-01-05 19:13:00.

2026-12-22 → 2027-01-05 · $411.25

  • Delta Air Lines DL5296 / DL457: BUF 2026-12-22 15:20:00 → DEN 2026-12-22 20:35:00; 1 stop(s) via JFK; 435 minutes. Local airport times.
    • DL5296: BUF 2026-12-22 15:20:00 → JFK 2026-12-22 16:53:00; layover at JFK: 66 minutes.
    • DL457: JFK 2026-12-22 17:59:00 → DEN 2026-12-22 20:35:00.
  • Delta Air Lines DL1113 / DL3843: DEN 2027-01-05 10:39:00 → BUF 2027-01-05 19:13:00; 1 stop(s) via DTW; 394 minutes. Local airport times.
    • DL1113: DEN 2027-01-05 10:39:00 → DTW 2027-01-05 15:20:00; layover at DTW: 156 minutes.
    • DL3843: DTW 2027-01-05 17:56:00 → BUF 2027-01-05 19:13:00.

More dates for this route