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Route overview: Buffalo to Denver (DEN) flight deals

Buffalo → Denver

May 27, 2027 · return May 30, 2027

BUF → DEN1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Thu, May 27 – Sun, May 30

Southwest Airlines
4:55 pmBUF
3h 40m
Nonstop
6:35 pmDEN
Southwest Airlines
11:50 amDEN
3h
Nonstop
4:50 pmBUF

Round-trip total · 1 adult · Taxes included

Thu, May 27 – Sun, May 30

United Airlines
8:17 amBUF
3h 46m
Nonstop
10:03 amDEN
United Airlines
5:25 pmDEN
3h 8m
Nonstop
10:33 pmBUF

Round-trip total · 1 adult · Taxes included

Thu, May 27 – Sun, May 30

Southwest Airlines
5:10 amBUF
3h 50m
Nonstop
7:00 amDEN
Southwest Airlines
11:50 amDEN
3h
Nonstop
4:50 pmBUF

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, May 27 – Sun, May 30

American Airlines
6:49 pmBUF
6h 8m
ORD · 1h 6m
10:57 pmDEN
American Airlines
6:30 amDEN
6h 27m
CLT · 1h 20m
2:57 pmBUF

Round-trip total · 1 adult · Taxes included

Thu, May 27 – Sun, May 30

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

Thu, May 27 – Sun, May 30

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

Round-trip total · 1 adult · Taxes included

Thu, May 27 – Sun, May 30

Southwest Airlines
2:00 pmBUF
6h 10m
MDW · 1h 35m
6:10 pmDEN
Southwest Airlines
11:50 amDEN
3h
Nonstop
4:50 pmBUF

Round-trip total · 1 adult · Taxes included

Thu, May 27 – Sun, May 30

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

Thu, May 27 – Sun, May 30

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

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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Explore this route

All dates for this routeMay 26, 2027 → May 29, 2027May 28, 2027 → May 31, 2027
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.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Buffalo to Denver (DEN) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-05-27 → 2027-05-30Southwest AirlinesWN818 / WN988$430.002026-10-29T00:53:56Z
2027-05-27 → 2027-05-30United AirlinesUA1727 / UA731$462.252026-10-29T00:53:56Z
2027-05-27 → 2027-05-30American AirlinesAA2306 + AA1387 / AA769 + AA3962$419.252026-10-29T00:53:56Z
2027-05-27 → 2027-05-30Delta Air LinesDL8783 + DL2931 / DL1113 + DL3843$440.752026-10-29T00:53:56Z
2027-05-27 → 2027-05-30Southwest AirlinesWN1316 / WN988$430.002026-10-29T00:53:56Z
2027-05-27 → 2027-05-30Southwest AirlinesWN1323 + WN994 / WN988$415.002026-10-29T00:53:56Z
2027-05-27 → 2027-05-30Southwest AirlinesWN726 + WN4606 / WN988$415.002026-10-29T00:53:56Z
2027-05-27 → 2027-05-30Delta Air LinesDL5296 + DL457 / DL1113 + DL3843$440.752026-10-29T00:53:56Z
2027-05-27 → 2027-05-30Delta Air LinesDL4636 + DL2431 / DL1113 + DL3843$440.752026-10-29T00:53:56Z

2027-05-27 → 2027-05-30 · $430.00

  • Southwest Airlines WN818: BUF 2027-05-27 16:55:00 → DEN 2027-05-27 18:35:00; nonstop; 220 minutes. Local airport times.
  • Southwest Airlines WN988: DEN 2027-05-30 11:50:00 → BUF 2027-05-30 16:50:00; nonstop; 180 minutes. Local airport times.

2027-05-27 → 2027-05-30 · $462.25

  • United Airlines UA1727: BUF 2027-05-27 08:17:00 → DEN 2027-05-27 10:03:00; nonstop; 226 minutes. Local airport times.
  • United Airlines UA731: DEN 2027-05-30 17:25:00 → BUF 2027-05-30 22:33:00; nonstop; 188 minutes. Local airport times.

2027-05-27 → 2027-05-30 · $419.25

  • American Airlines AA2306 / AA1387: BUF 2027-05-27 18:49:00 → DEN 2027-05-27 22:57:00; 1 stop(s) via ORD; 368 minutes. Local airport times.
    • AA2306: BUF 2027-05-27 18:49:00 → ORD 2027-05-27 19:59:00; layover at ORD: 66 minutes.
    • AA1387: ORD 2027-05-27 21:05:00 → DEN 2027-05-27 22:57:00.
  • American Airlines AA769 / AA3962: DEN 2027-05-30 06:30:00 → BUF 2027-05-30 14:57:00; 1 stop(s) via CLT; 387 minutes. Local airport times.
    • AA769: DEN 2027-05-30 06:30:00 → CLT 2027-05-30 11:45:00; layover at CLT: 80 minutes.
    • AA3962: CLT 2027-05-30 13:05:00 → BUF 2027-05-30 14:57:00.

2027-05-27 → 2027-05-30 · $440.75

  • Delta Air Lines DL8783 / DL2931: BUF 2027-05-27 16:05:00 → DEN 2027-05-27 20:19:00; 1 stop(s) via MSP; 374 minutes. Local airport times.
    • DL8783: BUF 2027-05-27 16:05:00 → MSP 2027-05-27 17:32:00; layover at MSP: 87 minutes.
    • DL2931: MSP 2027-05-27 18:59:00 → DEN 2027-05-27 20:19:00.
  • Delta Air Lines DL1113 / DL3843: DEN 2027-05-30 10:39:00 → BUF 2027-05-30 19:13:00; 1 stop(s) via DTW; 394 minutes. Local airport times.
    • DL1113: DEN 2027-05-30 10:39:00 → DTW 2027-05-30 15:20:00; layover at DTW: 156 minutes.
    • DL3843: DTW 2027-05-30 17:56:00 → BUF 2027-05-30 19:13:00.

2027-05-27 → 2027-05-30 · $430.00

  • Southwest Airlines WN1316: BUF 2027-05-27 05:10:00 → DEN 2027-05-27 07:00:00; nonstop; 230 minutes. Local airport times.
  • Southwest Airlines WN988: DEN 2027-05-30 11:50:00 → BUF 2027-05-30 16:50:00; nonstop; 180 minutes. Local airport times.

2027-05-27 → 2027-05-30 · $415.00

  • Southwest Airlines WN1323 / WN994: BUF 2027-05-27 11:35:00 → DEN 2027-05-27 16:20:00; 1 stop(s) via BWI; 405 minutes. Local airport times.
    • WN1323: BUF 2027-05-27 11:35:00 → BWI 2027-05-27 12:50:00; layover at BWI: 90 minutes.
    • WN994: BWI 2027-05-27 14:20:00 → DEN 2027-05-27 16:20:00.
  • Southwest Airlines WN988: DEN 2027-05-30 11:50:00 → BUF 2027-05-30 16:50:00; nonstop; 180 minutes. Local airport times.

2027-05-27 → 2027-05-30 · $415.00

  • Southwest Airlines WN726 / WN4606: BUF 2027-05-27 14:00:00 → DEN 2027-05-27 18:10:00; 1 stop(s) via MDW; 370 minutes. Local airport times.
    • WN726: BUF 2027-05-27 14:00:00 → MDW 2027-05-27 14:50:00; layover at MDW: 95 minutes.
    • WN4606: MDW 2027-05-27 16:25:00 → DEN 2027-05-27 18:10:00.
  • Southwest Airlines WN988: DEN 2027-05-30 11:50:00 → BUF 2027-05-30 16:50:00; nonstop; 180 minutes. Local airport times.

2027-05-27 → 2027-05-30 · $440.75

  • Delta Air Lines DL5296 / DL457: BUF 2027-05-27 15:20:00 → DEN 2027-05-27 20:35:00; 1 stop(s) via JFK; 435 minutes. Local airport times.
    • DL5296: BUF 2027-05-27 15:20:00 → JFK 2027-05-27 16:53:00; layover at JFK: 66 minutes.
    • DL457: JFK 2027-05-27 17:59:00 → DEN 2027-05-27 20:35:00.
  • Delta Air Lines DL1113 / DL3843: DEN 2027-05-30 10:39:00 → BUF 2027-05-30 19:13:00; 1 stop(s) via DTW; 394 minutes. Local airport times.
    • DL1113: DEN 2027-05-30 10:39:00 → DTW 2027-05-30 15:20:00; layover at DTW: 156 minutes.
    • DL3843: DTW 2027-05-30 17:56:00 → BUF 2027-05-30 19:13:00.

2027-05-27 → 2027-05-30 · $440.75

  • Delta Air Lines DL4636 / DL2431: BUF 2027-05-27 12:00:00 → DEN 2027-05-27 17:10:00; 1 stop(s) via DTW; 430 minutes. Local airport times.
    • DL4636: BUF 2027-05-27 12:00:00 → DTW 2027-05-27 13:17:00; layover at DTW: 163 minutes.
    • DL2431: DTW 2027-05-27 16:00:00 → DEN 2027-05-27 17:10:00.
  • Delta Air Lines DL1113 / DL3843: DEN 2027-05-30 10:39:00 → BUF 2027-05-30 19:13:00; 1 stop(s) via DTW; 394 minutes. Local airport times.
    • DL1113: DEN 2027-05-30 10:39:00 → DTW 2027-05-30 15:20:00; layover at DTW: 156 minutes.
    • DL3843: DTW 2027-05-30 17:56:00 → BUF 2027-05-30 19:13:00.

Explore this route

For AI assistants

  • This page: Buffalo (BUF) to Denver (DEN) · May 27, 2027 · return May 30, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • 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 Buffalo to Denver (DEN) 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. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. 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.