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Seattle → Miami

Dec 21, 2026 · return Dec 31, 2026

SEA → MIA1 adulteconomyRound trip

11 flight options · 4 airlines

Nonstop flights

Mon, Dec 21 – Thu, Dec 31

Alaska Airlines
9:32 pmSEA
5h 49m
Nonstop
6:21 am+1MIA
Alaska Airlines
6:21 pmMIA
6h 59m
Nonstop
10:20 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

American Airlines
1:02 pmSEA
5h 53m
Nonstop
9:55 pmMIA
American Airlines
8:06 pmMIA
6h 53m
Nonstop
11:59 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

Delta Air Lines
8:10 amSEA
5h 51m
Nonstop
5:01 pmMIA
Delta Air Lines
6:12 pmMIA
6h 53m
Nonstop
10:05 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

Alaska Airlines
8:24 amSEA
5h 54m
Nonstop
5:18 pmMIA
Alaska Airlines
6:21 pmMIA
6h 59m
Nonstop
10:20 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

American Airlines
9:14 pmSEA
5h 46m
Nonstop
6:00 am+1MIA
American Airlines
8:06 pmMIA
6h 53m
Nonstop
11:59 pmSEA

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Thu, Dec 31

United Airlines
5:05 amSEA
7h 41m
DEN · 1h 8m
3:46 pmMIA
United Airlines
7:35 amMIA
9h
DEN · 1h 21m
1:35 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

Alaska Airlines
7:35 pmSEA
8h 16m
DEN · 1h 44m
6:51 am+1MIA
Alaska Airlines
6:21 pmMIA
6h 59m
Nonstop
10:20 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

Alaska Airlines
9:28 pmSEA
5h 42m
Nonstop
6:10 am+1MIA
Alaska Airlines
4:51 pmMIA
9h 9m
PDX · 1h 17m
11:00 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

American Airlines
9:14 pmSEA
5h 42m
Nonstop
5:56 am+1MIA
American Airlines
2:05 pmMIA
9h 7m
MCO · 1h 28m
8:12 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

Delta Air Lines
8:10 amSEA
5h 56m
Nonstop
5:06 pmMIA
Delta Air Lines
6:40 amMIA
8h 56m
SLC · 1h 9m
12:36 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

Delta Air Lines
10:40 pmSEA
7h 49m
ATL · 1h 13m
9:29 am+1MIA
Delta Air Lines
6:12 pmMIA
6h 53m
Nonstop
10:05 pmSEA

Round-trip total · 1 adult · Taxes included

Make this trip yours

SEA ⇄ MIA

Economy

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

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  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
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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

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)
2026-12-21 → 2026-12-31Alaska AirlinesAS319 / AS305$609.002026-10-29T01:16:04Z
2026-12-21 → 2026-12-31American AirlinesAA3306 / AA2363$638.002026-10-29T01:16:04Z
2026-12-21 → 2026-12-31Delta Air LinesDL506 / DL564$652.502026-10-29T01:16:04Z
2026-12-21 → 2026-12-31United AirlinesUA1686 + UA1418 / UA1047 + UA2302$580.002026-10-29T01:16:04Z
2026-12-21 → 2026-12-31Alaska AirlinesAS305 / AS305$609.002026-10-29T01:16:04Z
2026-12-21 → 2026-12-31American AirlinesAA2142 / AA2363$638.002026-10-29T01:16:04Z
2026-12-21 → 2026-12-31Alaska AirlinesAS310 + AA582 / AS305$594.502026-10-29T01:16:04Z
2026-12-21 → 2026-12-31Alaska AirlinesAS319 / AS37 + AS1432$594.502026-10-29T01:16:04Z
2026-12-21 → 2026-12-31American AirlinesAA2142 / AA1608 + AS346$601.752026-10-29T01:16:04Z
2026-12-21 → 2026-12-31Delta Air LinesDL506 / DL976 + DL2995$623.502026-10-29T01:16:04Z
2026-12-21 → 2026-12-31Delta Air LinesDL567 + DL2836 / DL564$623.502026-10-29T01:16:04Z

2026-12-21 → 2026-12-31 · $609.00

  • Alaska Airlines AS319: SEA 2026-12-21 21:32:00 → MIA 2026-12-22 06:21:00; nonstop; 349 minutes. Local airport times.
  • Alaska Airlines AS305: MIA 2026-12-31 18:21:00 → SEA 2026-12-31 22:20:00; nonstop; 419 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $638.00

  • American Airlines AA3306: SEA 2026-12-21 13:02:00 → MIA 2026-12-21 21:55:00; nonstop; 353 minutes. Local airport times.
  • American Airlines AA2363: MIA 2026-12-31 20:06:00 → SEA 2026-12-31 23:59:00; nonstop; 413 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $652.50

  • Delta Air Lines DL506: SEA 2026-12-21 08:10:00 → MIA 2026-12-21 17:01:00; nonstop; 351 minutes. Local airport times.
  • Delta Air Lines DL564: MIA 2026-12-31 18:12:00 → SEA 2026-12-31 22:05:00; nonstop; 413 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $580.00

  • United Airlines UA1686 / UA1418: SEA 2026-12-21 05:05:00 → MIA 2026-12-21 15:46:00; 1 stop(s) via DEN; 461 minutes. Local airport times.
    • UA1686: SEA 2026-12-21 05:05:00 → DEN 2026-12-21 08:42:00; layover at DEN: 68 minutes.
    • UA1418: DEN 2026-12-21 09:50:00 → MIA 2026-12-21 15:46:00.
  • United Airlines UA1047 / UA2302: MIA 2026-12-31 07:35:00 → SEA 2026-12-31 13:35:00; 1 stop(s) via DEN; 540 minutes. Local airport times.
    • UA1047: MIA 2026-12-31 07:35:00 → DEN 2026-12-31 10:09:00; layover at DEN: 81 minutes.
    • UA2302: DEN 2026-12-31 11:30:00 → SEA 2026-12-31 13:35:00.

2026-12-21 → 2026-12-31 · $609.00

  • Alaska Airlines AS305: SEA 2026-12-21 08:24:00 → MIA 2026-12-21 17:18:00; nonstop; 354 minutes. Local airport times.
  • Alaska Airlines AS305: MIA 2026-12-31 18:21:00 → SEA 2026-12-31 22:20:00; nonstop; 419 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $638.00

  • American Airlines AA2142: SEA 2026-12-21 21:14:00 → MIA 2026-12-22 06:00:00; nonstop; 346 minutes. Local airport times.
  • American Airlines AA2363: MIA 2026-12-31 20:06:00 → SEA 2026-12-31 23:59:00; nonstop; 413 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $594.50

  • Alaska Airlines AS310 / AA582: SEA 2026-12-21 19:35:00 → MIA 2026-12-22 06:51:00; 1 stop(s) via DEN; 496 minutes. Local airport times.
    • AS310: SEA 2026-12-21 19:35:00 → DEN 2026-12-21 23:15:00; layover at DEN: 104 minutes.
    • AA582: DEN 2026-12-22 00:59:00 → MIA 2026-12-22 06:51:00.
  • Alaska Airlines AS305: MIA 2026-12-31 18:21:00 → SEA 2026-12-31 22:20:00; nonstop; 419 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $594.50

  • Alaska Airlines AS319: SEA 2026-12-21 21:28:00 → MIA 2026-12-22 06:10:00; nonstop; 342 minutes. Local airport times.
  • Alaska Airlines AS37 / AS1432: MIA 2026-12-31 16:51:00 → SEA 2026-12-31 23:00:00; 1 stop(s) via PDX; 549 minutes. Local airport times.
    • AS37: MIA 2026-12-31 16:51:00 → PDX 2026-12-31 20:42:00; layover at PDX: 77 minutes.
    • AS1432: PDX 2026-12-31 21:59:00 → SEA 2026-12-31 23:00:00.

2026-12-21 → 2026-12-31 · $601.75

  • American Airlines AA2142: SEA 2026-12-21 21:14:00 → MIA 2026-12-22 05:56:00; nonstop; 342 minutes. Local airport times.
  • American Airlines AA1608 / AS346: MIA 2026-12-31 14:05:00 → SEA 2026-12-31 20:12:00; 1 stop(s) via MCO; 547 minutes. Local airport times.
    • AA1608: MIA 2026-12-31 14:05:00 → MCO 2026-12-31 15:21:00; layover at MCO: 88 minutes.
    • AS346: MCO 2026-12-31 16:49:00 → SEA 2026-12-31 20:12:00.

2026-12-21 → 2026-12-31 · $623.50

  • Delta Air Lines DL506: SEA 2026-12-21 08:10:00 → MIA 2026-12-21 17:06:00; nonstop; 356 minutes. Local airport times.
  • Delta Air Lines DL976 / DL2995: MIA 2026-12-31 06:40:00 → SEA 2026-12-31 12:36:00; 1 stop(s) via SLC; 536 minutes. Local airport times.
    • DL976: MIA 2026-12-31 06:40:00 → SLC 2026-12-31 10:06:00; layover at SLC: 69 minutes.
    • DL2995: SLC 2026-12-31 11:15:00 → SEA 2026-12-31 12:36:00.

2026-12-21 → 2026-12-31 · $623.50

  • Delta Air Lines DL567 / DL2836: SEA 2026-12-21 22:40:00 → MIA 2026-12-22 09:29:00; 1 stop(s) via ATL; 469 minutes. Local airport times.
    • DL567: SEA 2026-12-21 22:40:00 → ATL 2026-12-22 06:12:00; layover at ATL: 73 minutes.
    • DL2836: ATL 2026-12-22 07:25:00 → MIA 2026-12-22 09:29:00.
  • Delta Air Lines DL564: MIA 2026-12-31 18:12:00 → SEA 2026-12-31 22:05:00; nonstop; 413 minutes. Local airport times.

More dates for this route