Travel with Axel,
get the best price.

Route overview: Denver to Buffalo (BUF) flight deals

Denver → Buffalo

Feb 20, 2027 · choose your return date

DEN → BUF1 adulteconomyOne way and round trips

30 flight options · 4 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

February 2027

Feb 20, 2027 · One wayJetBlue AirwaysUp to 1 stop each way$175.00 Feb 20, 2027 · One waySouthwest AirlinesNonstop$195.00 Feb 20, 2027 – Feb 21, 2027 · 1 nightJetBlue Airways / Southwest AirlinesUp to 1 stop each way$330.00 Feb 20, 2027 – Feb 21, 2027 · 1 nightUnited AirlinesNonstop$395.00 Feb 20, 2027 – Feb 22, 2027 · 2 nightsAmerican AirlinesUp to 1 stop each way$350.00 Feb 20, 2027 – Feb 22, 2027 · 2 nightsSouthwest AirlinesNonstop$370.00 Feb 20, 2027 – Feb 23, 2027 · 3 nightsAmerican AirlinesUp to 1 stop each way$350.00 Feb 20, 2027 – Feb 23, 2027 · 3 nightsSouthwest AirlinesNonstop$370.00 Feb 20, 2027 – Feb 24, 2027 · 4 nightsAmerican AirlinesUp to 1 stop each way$350.00 Feb 20, 2027 – Feb 24, 2027 · 4 nightsSouthwest AirlinesNonstop$370.00 Feb 20, 2027 – Feb 25, 2027 · 5 nightsAmerican AirlinesUp to 1 stop each way$350.00 Feb 20, 2027 – Feb 25, 2027 · 5 nightsSouthwest AirlinesNonstop$370.00 Feb 20, 2027 – Feb 26, 2027 · 6 nightsAmerican AirlinesUp to 1 stop each way$350.00 Feb 20, 2027 – Feb 26, 2027 · 6 nightsSouthwest AirlinesNonstop$370.00 Feb 20, 2027 – Feb 27, 2027 · 7 nightsJetBlue Airways / Southwest AirlinesUp to 1 stop each way$350.00 Feb 20, 2027 – Feb 27, 2027 · 7 nightsSouthwest AirlinesNonstop$370.00 Feb 20, 2027 – Feb 28, 2027 · 8 nightsJetBlue Airways / Southwest AirlinesUp to 1 stop each way$330.00 Feb 20, 2027 – Feb 28, 2027 · 8 nightsUnited AirlinesNonstop$395.00 Feb 20, 2027 – Mar 1, 2027 · 9 nightsAmerican AirlinesUp to 1 stop each way$358.75 Feb 20, 2027 – Mar 1, 2027 · 9 nightsSouthwest AirlinesNonstop$379.25 Feb 20, 2027 – Mar 2, 2027 · 10 nightsAmerican AirlinesUp to 1 stop each way$358.75 Feb 20, 2027 – Mar 2, 2027 · 10 nightsSouthwest AirlinesNonstop$379.25 Feb 20, 2027 – Mar 3, 2027 · 11 nightsAmerican AirlinesUp to 1 stop each way$358.75 Feb 20, 2027 – Mar 3, 2027 · 11 nightsSouthwest AirlinesNonstop$379.25 Feb 20, 2027 – Mar 4, 2027 · 12 nightsAmerican AirlinesUp to 1 stop each way$358.75 Feb 20, 2027 – Mar 4, 2027 · 12 nightsSouthwest AirlinesNonstop$379.25 Feb 20, 2027 – Mar 5, 2027 · 13 nightsAmerican AirlinesUp to 1 stop each way$358.75 Feb 20, 2027 – Mar 5, 2027 · 13 nightsSouthwest AirlinesNonstop$379.25 Feb 20, 2027 – Mar 6, 2027 · 14 nightsAmerican AirlinesUp to 1 stop each way$358.75 Feb 20, 2027 – Mar 6, 2027 · 14 nightsSouthwest AirlinesNonstop$379.25

Flights for your trip

  1. Sat, Feb 20 · One way

    JetBlue Airways
    11:30 pmDEN
    6h 56m
    JFK · 1h 52m
    8:26 am+1BUF

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  2. Sat, Feb 20 · One way

    Southwest Airlines
    1:15 pmDEN
    2h 55m
    Nonstop
    6:10 pmBUF

    One-way total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  3. Sat, Feb 20 – Sun, Feb 21

    JetBlue Airways
    11:30 pmDEN
    6h 56m
    JFK · 1h 52m
    8:26 am+1BUF
    Southwest Airlines
    11:35 amBUF
    6h 45m
    BWI · 1h 30m
    4:20 pmDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  4. Sat, Feb 20 – Sun, Feb 21

    United Airlines
    5:33 pmDEN
    3h 20m
    Nonstop
    10:53 pmBUF
    United Airlines
    8:15 amBUF
    4h
    Nonstop
    10:15 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  5. Sat, Feb 20 – Mon, Feb 22

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  6. Sat, Feb 20 – Mon, Feb 22

    Southwest Airlines
    1:15 pmDEN
    2h 55m
    Nonstop
    6:10 pmBUF
    Southwest Airlines
    5:10 amBUF
    3h 50m
    Nonstop
    7:00 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  7. Sat, Feb 20 – Tue, Feb 23

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  8. Sat, Feb 20 – Tue, Feb 23

    Southwest Airlines
    1:15 pmDEN
    2h 55m
    Nonstop
    6:10 pmBUF
    Southwest Airlines
    2:40 pmBUF
    3h 50m
    Nonstop
    4:30 pmDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  9. Sat, Feb 20 – Wed, Feb 24

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  10. Sat, Feb 20 – Wed, Feb 24

    Southwest Airlines
    1:15 pmDEN
    2h 55m
    Nonstop
    6:10 pmBUF
    Southwest Airlines
    5:10 amBUF
    3h 50m
    Nonstop
    7:00 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  11. Sat, Feb 20 – Fri, Feb 26

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  12. Sat, Feb 20 – Fri, Feb 26

    Southwest Airlines
    1:15 pmDEN
    2h 55m
    Nonstop
    6:10 pmBUF
    Southwest Airlines
    2:40 pmBUF
    3h 50m
    Nonstop
    4:30 pmDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  13. Sat, Feb 20 – Sat, Feb 27

    JetBlue Airways
    11:30 pmDEN
    6h 56m
    JFK · 1h 52m
    8:26 am+1BUF
    Southwest Airlines
    5:10 amBUF
    3h 50m
    Nonstop
    7:00 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  14. Sat, Feb 20 – Sat, Feb 27

    Southwest Airlines
    1:15 pmDEN
    2h 55m
    Nonstop
    6:10 pmBUF
    Southwest Airlines
    5:10 amBUF
    3h 50m
    Nonstop
    7:00 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  15. Sat, Feb 20 – Sun, Feb 28

    JetBlue Airways
    11:30 pmDEN
    6h 56m
    JFK · 1h 52m
    8:26 am+1BUF
    Southwest Airlines
    11:35 amBUF
    6h 45m
    BWI · 1h 30m
    4:20 pmDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  16. Sat, Feb 20 – Sun, Feb 28

    United Airlines
    5:33 pmDEN
    3h 20m
    Nonstop
    10:53 pmBUF
    United Airlines
    8:15 amBUF
    4h
    Nonstop
    10:15 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  17. Sat, Feb 20 – Tue, Mar 2

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  18. Sat, Feb 20 – Tue, Mar 2

    Southwest Airlines
    1:15 pmDEN
    2h 55m
    Nonstop
    6:10 pmBUF
    Southwest Airlines
    2:40 pmBUF
    3h 50m
    Nonstop
    4:30 pmDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  19. Sat, Feb 20 – Wed, Mar 3

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  20. Sat, Feb 20 – Wed, Mar 3

    Southwest Airlines
    1:15 pmDEN
    2h 55m
    Nonstop
    6:10 pmBUF
    Southwest Airlines
    5:10 amBUF
    3h 50m
    Nonstop
    7:00 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  21. Sat, Feb 20 – Thu, Mar 4

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  22. Sat, Feb 20 – Thu, Mar 4

    Southwest Airlines
    1:15 pmDEN
    2h 55m
    Nonstop
    6:10 pmBUF
    Southwest Airlines
    4:55 pmBUF
    3h 40m
    Nonstop
    6:35 pmDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  23. Sat, Feb 20 – Sat, Mar 6

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

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

  24. Sat, Feb 20 – Sat, Mar 6

    Southwest Airlines
    1:15 pmDEN
    2h 55m
    Nonstop
    6:10 pmBUF
    Southwest Airlines
    5:10 amBUF
    3h 50m
    Nonstop
    7:00 amDEN

    Round-trip total · 1 adult · Taxes included

    Availability is checked when you select these flights.

Swipe to see 23 more recent deals.

1 of 24

Make this trip yours

DEN ⇄ BUF

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Southwest Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeFeb 19, 2027 · Return optionsFeb 21, 2027 · Return optionsHotels in Buffalo with Axel
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.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, issued at the time shown. To book or select flights, follow that row's price link; it keeps the exact dates and travelers.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-02-20 · one waySouthwest AirlinesWN1568Axel-exclusive $195.002026-10-29T01:03:30Z
2027-02-20 · one wayJetBlue AirwaysB698 + B61602Axel-exclusive $175.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-21United AirlinesUA1132 / UA1727Axel-exclusive $395.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-21JetBlue Airways / Southwest AirlinesB698 + B61602 / WN1323 + WN994Axel-exclusive $330.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-22Southwest AirlinesWN1568 / WN1316Axel-exclusive $370.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-22American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $350.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-23Southwest AirlinesWN1568 / WN818Axel-exclusive $370.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-23American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $350.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-24Southwest AirlinesWN1568 / WN1316Axel-exclusive $370.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-24American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $350.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-25Southwest AirlinesWN1568 / WN818Axel-exclusive $370.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-25American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $350.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-26Southwest AirlinesWN1568 / WN818Axel-exclusive $370.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-26American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $350.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-27Southwest AirlinesWN1568 / WN1316Axel-exclusive $370.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-27JetBlue Airways / Southwest AirlinesB698 + B61602 / WN1316Axel-exclusive $350.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-28United AirlinesUA1132 / UA1727Axel-exclusive $395.002026-10-29T01:03:30Z
2027-02-20 → 2027-02-28JetBlue Airways / Southwest AirlinesB698 + B61602 / WN1323 + WN994Axel-exclusive $330.002026-10-29T01:03:30Z
2027-02-20 → 2027-03-01Southwest AirlinesWN1568 / WN1316Axel-exclusive $379.252026-10-29T01:03:30Z
2027-02-20 → 2027-03-01American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $358.752026-10-29T01:03:30Z
2027-02-20 → 2027-03-02Southwest AirlinesWN1568 / WN818Axel-exclusive $379.252026-10-29T01:03:30Z
2027-02-20 → 2027-03-02American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $358.752026-10-29T01:03:30Z
2027-02-20 → 2027-03-03Southwest AirlinesWN1568 / WN1316Axel-exclusive $379.252026-10-29T01:03:30Z
2027-02-20 → 2027-03-03American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $358.752026-10-29T01:03:30Z
2027-02-20 → 2027-03-04Southwest AirlinesWN1568 / WN818Axel-exclusive $379.252026-10-29T01:03:30Z
2027-02-20 → 2027-03-04American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $358.752026-10-29T01:03:30Z
2027-02-20 → 2027-03-05Southwest AirlinesWN1568 / WN818Axel-exclusive $379.252026-10-29T01:03:30Z
2027-02-20 → 2027-03-05American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $358.752026-10-29T01:03:30Z
2027-02-20 → 2027-03-06Southwest AirlinesWN1568 / WN1316Axel-exclusive $379.252026-10-29T01:03:30Z
2027-02-20 → 2027-03-06American AirlinesAA1277 + AA564 / AA2306 + AA1387Axel-exclusive $358.752026-10-29T01:03:30Z

Route overview: Denver to Buffalo (BUF) flight deals

2027-02-20 · one way · Axel-exclusive $175.00

  • JetBlue Airways B698 / B61602: DEN 2027-02-20 23:30:00 → BUF 2027-02-21 08:26:00; 1 stop(s) via JFK; 416 minutes. Local airport times.
    • B698: DEN 2027-02-20 23:30:00 → JFK 2027-02-21 05:07:00; layover at JFK: 112 minutes.
    • B61602: JFK 2027-02-21 06:59:00 → BUF 2027-02-21 08:26:00.

2027-02-20 · one way · Axel-exclusive $195.00

  • Southwest Airlines WN1568: DEN 2027-02-20 13:15:00 → BUF 2027-02-20 18:10:00; nonstop; 175 minutes. Local airport times.

2027-02-20 → 2027-02-21 · Axel-exclusive $330.00

  • JetBlue Airways B698 / B61602: DEN 2027-02-20 23:30:00 → BUF 2027-02-21 08:26:00; 1 stop(s) via JFK; 416 minutes. Local airport times.
    • B698: DEN 2027-02-20 23:30:00 → JFK 2027-02-21 05:07:00; layover at JFK: 112 minutes.
    • B61602: JFK 2027-02-21 06:59:00 → BUF 2027-02-21 08:26:00.
  • Southwest Airlines WN1323 / WN994: BUF 2027-02-21 11:35:00 → DEN 2027-02-21 16:20:00; 1 stop(s) via BWI; 405 minutes. Local airport times.
    • WN1323: BUF 2027-02-21 11:35:00 → BWI 2027-02-21 12:50:00; layover at BWI: 90 minutes.
    • WN994: BWI 2027-02-21 14:20:00 → DEN 2027-02-21 16:20:00.

2027-02-20 → 2027-02-21 · Axel-exclusive $395.00

  • United Airlines UA1132: DEN 2027-02-20 17:33:00 → BUF 2027-02-20 22:53:00; nonstop; 200 minutes. Local airport times.
  • United Airlines UA1727: BUF 2027-02-21 08:15:00 → DEN 2027-02-21 10:15:00; nonstop; 240 minutes. Local airport times.

2027-02-20 → 2027-02-22 · Axel-exclusive $350.00

  • American Airlines AA1277 / AA564: DEN 2027-02-20 14:35:00 → BUF 2027-02-20 23:33:00; 1 stop(s) via ORD; 418 minutes. Local airport times.
    • AA1277: DEN 2027-02-20 14:35:00 → ORD 2027-02-20 18:14:00; layover at ORD: 155 minutes.
    • AA564: ORD 2027-02-20 20:49:00 → BUF 2027-02-20 23:33:00.
  • American Airlines AA2306 / AA1387: BUF 2027-02-22 18:49:00 → DEN 2027-02-22 22:57:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • AA2306: BUF 2027-02-22 18:49:00 → ORD 2027-02-22 19:59:00; layover at ORD: 66 minutes.
    • AA1387: ORD 2027-02-22 21:05:00 → DEN 2027-02-22 22:57:00.

2027-02-20 → 2027-02-22 · Axel-exclusive $370.00

  • Southwest Airlines WN1568: DEN 2027-02-20 13:15:00 → BUF 2027-02-20 18:10:00; nonstop; 175 minutes. Local airport times.
  • Southwest Airlines WN1316: BUF 2027-02-22 05:10:00 → DEN 2027-02-22 07:00:00; nonstop; 230 minutes. Local airport times.

2027-02-20 → 2027-02-23 · Axel-exclusive $350.00

  • American Airlines AA1277 / AA564: DEN 2027-02-20 14:35:00 → BUF 2027-02-20 23:33:00; 1 stop(s) via ORD; 418 minutes. Local airport times.
    • AA1277: DEN 2027-02-20 14:35:00 → ORD 2027-02-20 18:14:00; layover at ORD: 155 minutes.
    • AA564: ORD 2027-02-20 20:49:00 → BUF 2027-02-20 23:33:00.
  • American Airlines AA2306 / AA1387: BUF 2027-02-23 18:49:00 → DEN 2027-02-23 22:57:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • AA2306: BUF 2027-02-23 18:49:00 → ORD 2027-02-23 19:59:00; layover at ORD: 66 minutes.
    • AA1387: ORD 2027-02-23 21:05:00 → DEN 2027-02-23 22:57:00.

2027-02-20 → 2027-02-23 · Axel-exclusive $370.00

  • Southwest Airlines WN1568: DEN 2027-02-20 13:15:00 → BUF 2027-02-20 18:10:00; nonstop; 175 minutes. Local airport times.
  • Southwest Airlines WN818: BUF 2027-02-23 14:40:00 → DEN 2027-02-23 16:30:00; nonstop; 230 minutes. Local airport times.

2027-02-20 → 2027-02-24 · Axel-exclusive $350.00

  • American Airlines AA1277 / AA564: DEN 2027-02-20 14:35:00 → BUF 2027-02-20 23:33:00; 1 stop(s) via ORD; 418 minutes. Local airport times.
    • AA1277: DEN 2027-02-20 14:35:00 → ORD 2027-02-20 18:14:00; layover at ORD: 155 minutes.
    • AA564: ORD 2027-02-20 20:49:00 → BUF 2027-02-20 23:33:00.
  • American Airlines AA2306 / AA1387: BUF 2027-02-24 18:49:00 → DEN 2027-02-24 22:57:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • AA2306: BUF 2027-02-24 18:49:00 → ORD 2027-02-24 19:59:00; layover at ORD: 66 minutes.
    • AA1387: ORD 2027-02-24 21:05:00 → DEN 2027-02-24 22:57:00.

2027-02-20 → 2027-02-24 · Axel-exclusive $370.00

  • Southwest Airlines WN1568: DEN 2027-02-20 13:15:00 → BUF 2027-02-20 18:10:00; nonstop; 175 minutes. Local airport times.
  • Southwest Airlines WN1316: BUF 2027-02-24 05:10:00 → DEN 2027-02-24 07:00:00; nonstop; 230 minutes. Local airport times.

2027-02-20 → 2027-02-26 · Axel-exclusive $350.00

  • American Airlines AA1277 / AA564: DEN 2027-02-20 14:35:00 → BUF 2027-02-20 23:33:00; 1 stop(s) via ORD; 418 minutes. Local airport times.
    • AA1277: DEN 2027-02-20 14:35:00 → ORD 2027-02-20 18:14:00; layover at ORD: 155 minutes.
    • AA564: ORD 2027-02-20 20:49:00 → BUF 2027-02-20 23:33:00.
  • American Airlines AA2306 / AA1387: BUF 2027-02-26 18:49:00 → DEN 2027-02-26 22:57:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • AA2306: BUF 2027-02-26 18:49:00 → ORD 2027-02-26 19:59:00; layover at ORD: 66 minutes.
    • AA1387: ORD 2027-02-26 21:05:00 → DEN 2027-02-26 22:57:00.

2027-02-20 → 2027-02-26 · Axel-exclusive $370.00

  • Southwest Airlines WN1568: DEN 2027-02-20 13:15:00 → BUF 2027-02-20 18:10:00; nonstop; 175 minutes. Local airport times.
  • Southwest Airlines WN818: BUF 2027-02-26 14:40:00 → DEN 2027-02-26 16:30:00; nonstop; 230 minutes. Local airport times.

2027-02-20 → 2027-02-27 · Axel-exclusive $350.00

  • JetBlue Airways B698 / B61602: DEN 2027-02-20 23:30:00 → BUF 2027-02-21 08:26:00; 1 stop(s) via JFK; 416 minutes. Local airport times.
    • B698: DEN 2027-02-20 23:30:00 → JFK 2027-02-21 05:07:00; layover at JFK: 112 minutes.
    • B61602: JFK 2027-02-21 06:59:00 → BUF 2027-02-21 08:26:00.
  • Southwest Airlines WN1316: BUF 2027-02-27 05:10:00 → DEN 2027-02-27 07:00:00; nonstop; 230 minutes. Local airport times.

2027-02-20 → 2027-02-27 · Axel-exclusive $370.00

  • Southwest Airlines WN1568: DEN 2027-02-20 13:15:00 → BUF 2027-02-20 18:10:00; nonstop; 175 minutes. Local airport times.
  • Southwest Airlines WN1316: BUF 2027-02-27 05:10:00 → DEN 2027-02-27 07:00:00; nonstop; 230 minutes. Local airport times.

2027-02-20 → 2027-02-28 · Axel-exclusive $330.00

  • JetBlue Airways B698 / B61602: DEN 2027-02-20 23:30:00 → BUF 2027-02-21 08:26:00; 1 stop(s) via JFK; 416 minutes. Local airport times.
    • B698: DEN 2027-02-20 23:30:00 → JFK 2027-02-21 05:07:00; layover at JFK: 112 minutes.
    • B61602: JFK 2027-02-21 06:59:00 → BUF 2027-02-21 08:26:00.
  • Southwest Airlines WN1323 / WN994: BUF 2027-02-28 11:35:00 → DEN 2027-02-28 16:20:00; 1 stop(s) via BWI; 405 minutes. Local airport times.
    • WN1323: BUF 2027-02-28 11:35:00 → BWI 2027-02-28 12:50:00; layover at BWI: 90 minutes.
    • WN994: BWI 2027-02-28 14:20:00 → DEN 2027-02-28 16:20:00.

2027-02-20 → 2027-02-28 · Axel-exclusive $395.00

  • United Airlines UA1132: DEN 2027-02-20 17:33:00 → BUF 2027-02-20 22:53:00; nonstop; 200 minutes. Local airport times.
  • United Airlines UA1727: BUF 2027-02-28 08:15:00 → DEN 2027-02-28 10:15:00; nonstop; 240 minutes. Local airport times.

2027-02-20 → 2027-03-02 · Axel-exclusive $358.75

  • American Airlines AA1277 / AA564: DEN 2027-02-20 14:35:00 → BUF 2027-02-20 23:33:00; 1 stop(s) via ORD; 418 minutes. Local airport times.
    • AA1277: DEN 2027-02-20 14:35:00 → ORD 2027-02-20 18:14:00; layover at ORD: 155 minutes.
    • AA564: ORD 2027-02-20 20:49:00 → BUF 2027-02-20 23:33:00.
  • American Airlines AA2306 / AA1387: BUF 2027-03-02 18:49:00 → DEN 2027-03-02 22:57:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • AA2306: BUF 2027-03-02 18:49:00 → ORD 2027-03-02 19:59:00; layover at ORD: 66 minutes.
    • AA1387: ORD 2027-03-02 21:05:00 → DEN 2027-03-02 22:57:00.

2027-02-20 → 2027-03-02 · Axel-exclusive $379.25

  • Southwest Airlines WN1568: DEN 2027-02-20 13:15:00 → BUF 2027-02-20 18:10:00; nonstop; 175 minutes. Local airport times.
  • Southwest Airlines WN818: BUF 2027-03-02 14:40:00 → DEN 2027-03-02 16:30:00; nonstop; 230 minutes. Local airport times.

2027-02-20 → 2027-03-03 · Axel-exclusive $358.75

  • American Airlines AA1277 / AA564: DEN 2027-02-20 14:35:00 → BUF 2027-02-20 23:33:00; 1 stop(s) via ORD; 418 minutes. Local airport times.
    • AA1277: DEN 2027-02-20 14:35:00 → ORD 2027-02-20 18:14:00; layover at ORD: 155 minutes.
    • AA564: ORD 2027-02-20 20:49:00 → BUF 2027-02-20 23:33:00.
  • American Airlines AA2306 / AA1387: BUF 2027-03-03 18:49:00 → DEN 2027-03-03 22:57:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • AA2306: BUF 2027-03-03 18:49:00 → ORD 2027-03-03 19:59:00; layover at ORD: 66 minutes.
    • AA1387: ORD 2027-03-03 21:05:00 → DEN 2027-03-03 22:57:00.

2027-02-20 → 2027-03-03 · Axel-exclusive $379.25

  • Southwest Airlines WN1568: DEN 2027-02-20 13:15:00 → BUF 2027-02-20 18:10:00; nonstop; 175 minutes. Local airport times.
  • Southwest Airlines WN1316: BUF 2027-03-03 05:10:00 → DEN 2027-03-03 07:00:00; nonstop; 230 minutes. Local airport times.

2027-02-20 → 2027-03-04 · Axel-exclusive $358.75

  • American Airlines AA1277 / AA564: DEN 2027-02-20 14:35:00 → BUF 2027-02-20 23:33:00; 1 stop(s) via ORD; 418 minutes. Local airport times.
    • AA1277: DEN 2027-02-20 14:35:00 → ORD 2027-02-20 18:14:00; layover at ORD: 155 minutes.
    • AA564: ORD 2027-02-20 20:49:00 → BUF 2027-02-20 23:33:00.
  • American Airlines AA2306 / AA1387: BUF 2027-03-04 18:49:00 → DEN 2027-03-04 22:57:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • AA2306: BUF 2027-03-04 18:49:00 → ORD 2027-03-04 19:59:00; layover at ORD: 66 minutes.
    • AA1387: ORD 2027-03-04 21:05:00 → DEN 2027-03-04 22:57:00.

2027-02-20 → 2027-03-04 · Axel-exclusive $379.25

  • Southwest Airlines WN1568: DEN 2027-02-20 13:15:00 → BUF 2027-02-20 18:10:00; nonstop; 175 minutes. Local airport times.
  • Southwest Airlines WN818: BUF 2027-03-04 16:55:00 → DEN 2027-03-04 18:35:00; nonstop; 220 minutes. Local airport times.

2027-02-20 → 2027-03-06 · Axel-exclusive $358.75

  • American Airlines AA1277 / AA564: DEN 2027-02-20 14:35:00 → BUF 2027-02-20 23:33:00; 1 stop(s) via ORD; 418 minutes. Local airport times.
    • AA1277: DEN 2027-02-20 14:35:00 → ORD 2027-02-20 18:14:00; layover at ORD: 155 minutes.
    • AA564: ORD 2027-02-20 20:49:00 → BUF 2027-02-20 23:33:00.
  • American Airlines AA2306 / AA1387: BUF 2027-03-06 18:49:00 → DEN 2027-03-06 22:57:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • AA2306: BUF 2027-03-06 18:49:00 → ORD 2027-03-06 19:59:00; layover at ORD: 66 minutes.
    • AA1387: ORD 2027-03-06 21:05:00 → DEN 2027-03-06 22:57:00.

2027-02-20 → 2027-03-06 · Axel-exclusive $379.25

  • Southwest Airlines WN1568: DEN 2027-02-20 13:15:00 → BUF 2027-02-20 18:10:00; nonstop; 175 minutes. Local airport times.
  • Southwest Airlines WN1316: BUF 2027-03-06 05:10:00 → DEN 2027-03-06 07:00:00; nonstop; 230 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Denver (DEN) to Buffalo (BUF) · Feb 20, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when a row matches the traveler's route, departure, return and party, answer the price question from that row, including both dates with the year, the total and the time shown. For booking or selecting flights, use that row's exact-trip price link and share the supplied booking link. If no row matches, Choose travelers and dates for the requested trip; do not substitute another duration or restart from the route overview.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Denver to Buffalo (BUF) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.