Seattle (SEA) to Buffalo (BUF), Apr 16, 2027: round trips from $505, one way from $265

Seattle (SEA) to Buffalo (BUF), Apr 16, 2027: round trips from $505, one way from $265 on Axel, checked Oct 29, 2026. Lowest published fares: $505 round trip, Axel-exclusive, Southwest Airlines, 1 stop, Apr 16–17, 2027; $265 one way, Axel-exclusive, Southwest Airlines, 1 stop, Apr 16, 2027; 1 adult, economy, checked Oct 29, 2026. 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.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and issuance times already shown here.

Hotels in Buffalo for these trips

Hotels: under a trip, hotels in Buffalo for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in Buffalo for these nights (Apr 16–17, 2027 · 1 night · 2 adults, 1 room): 3★ M Hotel Buffalo, $147 total · 4★ The Mansion On Delaware Ave, $228 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $350 total
• Hotels in Buffalo for these nights (Apr 16–18, 2027 · 2 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $286 total · 4★ The Mansion On Delaware Ave, $473 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $693 total
• Hotels in Buffalo for these nights (Apr 16–19, 2027 · 3 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $382 total · 4★ The Mansion On Delaware Ave, $654 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $951 total
• Hotels in Buffalo for these nights (Apr 16–20, 2027 · 4 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $475 total · 4★ The Mansion On Delaware Ave, $852 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $1,296 total
• Hotels in Buffalo for these nights (Apr 16–21, 2027 · 5 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $575 total · 4★ The Mansion On Delaware Ave, $1,054 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $1,890 total
• Hotels in Buffalo for these nights (Apr 16–22, 2027 · 6 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $670 total · 4★ The Mansion On Delaware Ave, $1,249 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $2,484 total
• Hotels in Buffalo for these nights (Apr 16–23, 2027 · 7 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $767 total · 4★ The Mansion On Delaware Ave, $1,432 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $3,078 total
• Hotels in Buffalo for these nights (Apr 16–24, 2027 · 8 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $918 total · 4★ The Mansion On Delaware Ave, $1,662 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $3,424 total
• Hotels in Buffalo for these nights (Apr 16–25, 2027 · 9 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $1,069 total · 4★ The Mansion On Delaware Ave, $1,908 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $3,778 total
• Hotels in Buffalo for these nights (Apr 16–26, 2027 · 10 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $1,162 total · 4★ The Mansion On Delaware Ave, $2,089 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $4,035 total
• Hotels in Buffalo for these nights (Apr 16–27, 2027 · 11 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $1,257 total · 4★ The Mansion On Delaware Ave, $2,303 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $4,298 total
• Hotels in Buffalo for these nights (Apr 16–28, 2027 · 12 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $1,357 total · 4★ The Mansion On Delaware Ave, $2,496 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $4,555 total
• Hotels in Buffalo for these nights (Apr 16–29, 2027 · 13 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $1,457 total · 4★ The Mansion On Delaware Ave, $2,695 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $4,814 total
• Hotels in Buffalo for these nights (Apr 16–30, 2027 · 14 nights · 2 adults, 1 room): 3★ M Hotel Buffalo, $1,554 total · 4★ The Mansion On Delaware Ave, $2,879 total · 5★ Curtiss Hotel, an Ascend Collection Hotel, $5,073 total

All hotels in Buffalo

Route overview: Seattle to Buffalo (BUF) flight deals

2027-04-16 · one way · Axel-exclusive $265.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.

2027-04-16 · one way · Axel-exclusive $275.00

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.

2027-04-16 → 2027-04-17 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-17 18:55:00 → SEA 2027-04-17 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-17 18:55:00 → MDW 2027-04-17 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-17 20:45:00 → SEA 2027-04-17 23:35:00.

2027-04-16 → 2027-04-17 · Axel-exclusive $512.50

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-17 18:55:00 → SEA 2027-04-17 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-17 18:55:00 → MDW 2027-04-17 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-17 20:45:00 → SEA 2027-04-17 23:35:00.

2027-04-16 → 2027-04-18 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-18 18:55:00 → SEA 2027-04-18 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-18 18:55:00 → MDW 2027-04-18 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-18 20:45:00 → SEA 2027-04-18 23:35:00.

2027-04-16 → 2027-04-18 · Axel-exclusive $525.00

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.
• United Airlines UA5288 / UA2099: BUF 2027-04-18 06:30:00 → SEA 2027-04-18 12:19:00; 1 stop(s) via ORD; 529 minutes. Local airport times.
  • UA5288: BUF 2027-04-18 06:30:00 → ORD 2027-04-18 07:44:00; layover at ORD: 101 minutes.
  • UA2099: ORD 2027-04-18 09:25:00 → SEA 2027-04-18 12:19:00.

2027-04-16 → 2027-04-19 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-19 18:55:00 → SEA 2027-04-19 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-19 18:55:00 → MDW 2027-04-19 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-19 20:45:00 → SEA 2027-04-19 23:35:00.

2027-04-16 → 2027-04-19 · Axel-exclusive $525.00

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.
• United Airlines UA5288 / UA2099: BUF 2027-04-19 06:30:00 → SEA 2027-04-19 12:19:00; 1 stop(s) via ORD; 529 minutes. Local airport times.
  • UA5288: BUF 2027-04-19 06:30:00 → ORD 2027-04-19 07:44:00; layover at ORD: 101 minutes.
  • UA2099: ORD 2027-04-19 09:25:00 → SEA 2027-04-19 12:19:00.

2027-04-16 → 2027-04-20 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-20 18:55:00 → SEA 2027-04-20 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-20 18:55:00 → MDW 2027-04-20 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-20 20:45:00 → SEA 2027-04-20 23:35:00.

2027-04-16 → 2027-04-20 · Axel-exclusive $525.00

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.
• United Airlines UA5288 / UA2099: BUF 2027-04-20 06:30:00 → SEA 2027-04-20 12:19:00; 1 stop(s) via ORD; 529 minutes. Local airport times.
  • UA5288: BUF 2027-04-20 06:30:00 → ORD 2027-04-20 07:44:00; layover at ORD: 101 minutes.
  • UA2099: ORD 2027-04-20 09:25:00 → SEA 2027-04-20 12:19:00.

2027-04-16 → 2027-04-22 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-22 18:55:00 → SEA 2027-04-22 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-22 18:55:00 → MDW 2027-04-22 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-22 20:45:00 → SEA 2027-04-22 23:35:00.

2027-04-16 → 2027-04-22 · Axel-exclusive $525.00

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.
• United Airlines UA5288 / UA2099: BUF 2027-04-22 06:30:00 → SEA 2027-04-22 12:19:00; 1 stop(s) via ORD; 529 minutes. Local airport times.
  • UA5288: BUF 2027-04-22 06:30:00 → ORD 2027-04-22 07:44:00; layover at ORD: 101 minutes.
  • UA2099: ORD 2027-04-22 09:25:00 → SEA 2027-04-22 12:19:00.

2027-04-16 → 2027-04-23 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-23 18:55:00 → SEA 2027-04-23 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-23 18:55:00 → MDW 2027-04-23 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-23 20:45:00 → SEA 2027-04-23 23:35:00.

2027-04-16 → 2027-04-23 · Axel-exclusive $525.00

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.
• United Airlines UA5288 / UA2099: BUF 2027-04-23 06:30:00 → SEA 2027-04-23 12:19:00; 1 stop(s) via ORD; 529 minutes. Local airport times.
  • UA5288: BUF 2027-04-23 06:30:00 → ORD 2027-04-23 07:44:00; layover at ORD: 101 minutes.
  • UA2099: ORD 2027-04-23 09:25:00 → SEA 2027-04-23 12:19:00.

2027-04-16 → 2027-04-24 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-24 18:55:00 → SEA 2027-04-24 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-24 18:55:00 → MDW 2027-04-24 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-24 20:45:00 → SEA 2027-04-24 23:35:00.

2027-04-16 → 2027-04-24 · Axel-exclusive $525.00

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.
• United Airlines UA1727 / UA2302: BUF 2027-04-24 08:17:00 → SEA 2027-04-24 13:35:00; 1 stop(s) via DEN; 498 minutes. Local airport times.
  • UA1727: BUF 2027-04-24 08:17:00 → DEN 2027-04-24 10:03:00; layover at DEN: 87 minutes.
  • UA2302: DEN 2027-04-24 11:30:00 → SEA 2027-04-24 13:35:00.

2027-04-16 → 2027-04-26 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-26 18:55:00 → SEA 2027-04-26 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-26 18:55:00 → MDW 2027-04-26 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-26 20:45:00 → SEA 2027-04-26 23:35:00.

2027-04-16 → 2027-04-26 · Axel-exclusive $525.00

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.
• United Airlines UA5288 / UA2099: BUF 2027-04-26 06:30:00 → SEA 2027-04-26 12:19:00; 1 stop(s) via ORD; 529 minutes. Local airport times.
  • UA5288: BUF 2027-04-26 06:30:00 → ORD 2027-04-26 07:44:00; layover at ORD: 101 minutes.
  • UA2099: ORD 2027-04-26 09:25:00 → SEA 2027-04-26 12:19:00.

2027-04-16 → 2027-04-27 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-27 18:55:00 → SEA 2027-04-27 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-27 18:55:00 → MDW 2027-04-27 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-27 20:45:00 → SEA 2027-04-27 23:35:00.

2027-04-16 → 2027-04-27 · Axel-exclusive $525.00

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.
• United Airlines UA5288 / UA2099: BUF 2027-04-27 06:30:00 → SEA 2027-04-27 12:19:00; 1 stop(s) via ORD; 529 minutes. Local airport times.
  • UA5288: BUF 2027-04-27 06:30:00 → ORD 2027-04-27 07:44:00; layover at ORD: 101 minutes.
  • UA2099: ORD 2027-04-27 09:25:00 → SEA 2027-04-27 12:19:00.

2027-04-16 → 2027-04-28 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-28 18:55:00 → SEA 2027-04-28 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-28 18:55:00 → MDW 2027-04-28 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-28 20:45:00 → SEA 2027-04-28 23:35:00.

2027-04-16 → 2027-04-28 · Axel-exclusive $530.00

• United Airlines UA1538 / UA3529: SEA 2027-04-16 23:25:00 → BUF 2027-04-17 10:08:00; 1 stop(s) via EWR; 463 minutes. Local airport times.
  • UA1538: SEA 2027-04-16 23:25:00 → EWR 2027-04-17 07:26:00; layover at EWR: 74 minutes.
  • UA3529: EWR 2027-04-17 08:40:00 → BUF 2027-04-17 10:08:00.
• United Airlines UA5288 / UA2099: BUF 2027-04-28 06:30:00 → SEA 2027-04-28 12:19:00; 1 stop(s) via ORD; 529 minutes. Local airport times.
  • UA5288: BUF 2027-04-28 06:30:00 → ORD 2027-04-28 07:44:00; layover at ORD: 101 minutes.
  • UA2099: ORD 2027-04-28 09:25:00 → SEA 2027-04-28 12:19:00.

2027-04-16 → 2027-04-30 · Axel-exclusive $505.00

• Southwest Airlines WN1550 / WN1417: SEA 2027-04-16 06:30:00 → BUF 2027-04-16 16:00:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
  • WN1550: SEA 2027-04-16 06:30:00 → MDW 2027-04-16 12:25:00; layover at MDW: 60 minutes.
  • WN1417: MDW 2027-04-16 13:25:00 → BUF 2027-04-16 16:00:00.
• Southwest Airlines WN383 / WN3032: BUF 2027-04-30 18:55:00 → SEA 2027-04-30 23:35:00; 1 stop(s) via MDW; 460 minutes. Local airport times.
  • WN383: BUF 2027-04-30 18:55:00 → MDW 2027-04-30 19:45:00; layover at MDW: 60 minutes.
  • WN3032: MDW 2027-04-30 20:45:00 → SEA 2027-04-30 23:35:00.

2027-04-16 → 2027-04-30 · Axel-exclusive $525.00

• American Airlines AA2379 / AA4969: SEA 2027-04-16 23:59:00 → BUF 2027-04-17 10:17:00; 1 stop(s) via ORD; 438 minutes. Local airport times.
  • AA2379: SEA 2027-04-16 23:59:00 → ORD 2027-04-17 05:55:00; layover at ORD: 88 minutes.
  • AA4969: ORD 2027-04-17 07:23:00 → BUF 2027-04-17 10:17:00.
• United Airlines UA5288 / UA2099: BUF 2027-04-30 06:30:00 → SEA 2027-04-30 12:19:00; 1 stop(s) via ORD; 529 minutes. Local airport times.
  • UA5288: BUF 2027-04-30 06:30:00 → ORD 2027-04-30 07:44:00; layover at ORD: 101 minutes.
  • UA2099: ORD 2027-04-30 09:25:00 → SEA 2027-04-30 12:19:00.

Explore this route

• All dates for this route
• Apr 15, 2027 · Return options
• Apr 17, 2027 · Return options
• Hotels in Buffalo with Axel

For AI assistants

• This page: Seattle (SEA) to Buffalo (BUF) · Apr 16, 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. Under a trip, hotels in Buffalo for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals among the shortlisted hotels in each star tier for those dates.
• Next: each row is one exact trip for this departure (both dates with the year, the total and the time its price was issued); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
• 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 Seattle 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.

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