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Houston → Seattle

Dec 21, 2026 · return Jan 4, 2027

IAH → SEA1 adulteconomyRound trip

10 flight options · 6 airlines

Nonstop flights

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
7:00 amIAH
4h 58m
Nonstop
9:58 amSEA
Alaska Airlines
10:54 pmSEA
4h 15m
Nonstop
5:09 am+1IAH

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
7:55 pmIAH
4h 56m
Nonstop
10:51 pmSEA
United Airlines
11:59 pmSEA
4h 14m
Nonstop
6:13 am+1IAH

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
7:10 pmIAH
4h 44m
Nonstop
9:54 pmSEA
Alaska Airlines
10:54 pmSEA
4h 15m
Nonstop
5:09 am+1IAH

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
4:20 pmIAH
4h 56m
Nonstop
7:16 pmSEA
United Airlines
11:59 pmSEA
4h 14m
Nonstop
6:13 am+1IAH

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Mon, Jan 4

Frontier Airlines
6:26 amIAH
7h 56m
DEN · 2h 3m
12:22 pmSEA
Frontier Airlines
4:37 pmSEA
6h 46m
DEN · 1h 34m
1:23 am+1IAH

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

American Airlines
2:37 pmIAH
7h 32m
PHX · 1h 12m
8:09 pmSEA
American Airlines
3:00 pmSEA
6h 48m
PHX · 1h 15m
11:48 pmIAH

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Delta Air Lines
7:20 amIAH
7h 16m
SLC · 1h 30m
12:36 pmSEA
Delta Air Lines
8:30 amSEA
7h 23m
MSP · 1h
5:53 pmIAH

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

WestJet
8:00 amIAH
7h 40m
YYC · 1h 15m
1:40 pmSEA
Alaska Airlines
10:54 pmSEA
4h 15m
Nonstop
5:09 am+1IAH

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
6:10 pmIAH
6h 50m
PDX · 1h 9m
11:00 pmSEA
Alaska Airlines
10:54 pmSEA
4h 15m
Nonstop
5:09 am+1IAH

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
12:43 pmIAH
7h 14m
DEN · 1h 28m
5:57 pmSEA
United Airlines
11:59 pmSEA
4h 14m
Nonstop
6:13 am+1IAH

Round-trip total · 1 adult · Taxes included

Make this trip yours

IAH ⇄ SEA

Economy

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

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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 → 2027-01-04Alaska AirlinesAS280 / AS240$423.002026-10-29T01:11:30Z
2026-12-21 → 2027-01-04United AirlinesUA2341 / UA2767$458.252026-10-29T01:11:30Z
2026-12-21 → 2027-01-04Frontier AirlinesF93229 + F9605 / F91916 + F92996$235.002026-10-29T01:11:30Z
2026-12-21 → 2027-01-04American AirlinesAA2873 + AA2177 / AA2073 + AA3232$399.502026-10-29T01:11:30Z
2026-12-21 → 2027-01-04Delta Air LinesDL1583 + DL2995 / DL536 + DL2644$434.752026-10-29T01:11:30Z
2026-12-21 → 2027-01-04WestJet / Alaska AirlinesWS1541 + WS1552 / AS240$504.002026-10-29T01:11:30Z
2026-12-21 → 2027-01-04Alaska AirlinesAS439 / AS240$423.002026-10-29T01:11:30Z
2026-12-21 → 2027-01-04United AirlinesUA1269 / UA2767$458.252026-10-29T01:11:30Z
2026-12-21 → 2027-01-04Alaska AirlinesAS1421 + AS1432 / AS240$402.752026-10-29T01:11:30Z
2026-12-21 → 2027-01-04United AirlinesUA2168 + UA2013 / UA2767$431.252026-10-29T01:11:30Z

2026-12-21 → 2027-01-04 · $423.00

  • Alaska Airlines AS280: IAH 2026-12-21 07:00:00 → SEA 2026-12-21 09:58:00; nonstop; 298 minutes. Local airport times.
  • Alaska Airlines AS240: SEA 2027-01-04 22:54:00 → IAH 2027-01-05 05:09:00; nonstop; 255 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $458.25

  • United Airlines UA2341: IAH 2026-12-21 19:55:00 → SEA 2026-12-21 22:51:00; nonstop; 296 minutes. Local airport times.
  • United Airlines UA2767: SEA 2027-01-04 23:59:00 → IAH 2027-01-05 06:13:00; nonstop; 254 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $235.00

  • Frontier Airlines F93229 / F9605: IAH 2026-12-21 06:26:00 → SEA 2026-12-21 12:22:00; 1 stop(s) via DEN; 476 minutes. Local airport times.
    • F93229: IAH 2026-12-21 06:26:00 → DEN 2026-12-21 08:05:00; layover at DEN: 123 minutes.
    • F9605: DEN 2026-12-21 10:08:00 → SEA 2026-12-21 12:22:00.
  • Frontier Airlines F91916 / F92996: SEA 2027-01-04 16:37:00 → IAH 2027-01-05 01:23:00; 1 stop(s) via DEN; 406 minutes. Local airport times.
    • F91916: SEA 2027-01-04 16:37:00 → DEN 2027-01-04 20:25:00; layover at DEN: 94 minutes.
    • F92996: DEN 2027-01-04 21:59:00 → IAH 2027-01-05 01:23:00.

2026-12-21 → 2027-01-04 · $399.50

  • American Airlines AA2873 / AA2177: IAH 2026-12-21 14:37:00 → SEA 2026-12-21 20:09:00; 1 stop(s) via PHX; 452 minutes. Local airport times.
    • AA2873: IAH 2026-12-21 14:37:00 → PHX 2026-12-21 16:38:00; layover at PHX: 72 minutes.
    • AA2177: PHX 2026-12-21 17:50:00 → SEA 2026-12-21 20:09:00.
  • American Airlines AA2073 / AA3232: SEA 2027-01-04 15:00:00 → IAH 2027-01-04 23:48:00; 1 stop(s) via PHX; 408 minutes. Local airport times.
    • AA2073: SEA 2027-01-04 15:00:00 → PHX 2027-01-04 18:52:00; layover at PHX: 75 minutes.
    • AA3232: PHX 2027-01-04 20:07:00 → IAH 2027-01-04 23:48:00.

2026-12-21 → 2027-01-04 · $434.75

  • Delta Air Lines DL1583 / DL2995: IAH 2026-12-21 07:20:00 → SEA 2026-12-21 12:36:00; 1 stop(s) via SLC; 436 minutes. Local airport times.
    • DL1583: IAH 2026-12-21 07:20:00 → SLC 2026-12-21 09:45:00; layover at SLC: 90 minutes.
    • DL2995: SLC 2026-12-21 11:15:00 → SEA 2026-12-21 12:36:00.
  • Delta Air Lines DL536 / DL2644: SEA 2027-01-04 08:30:00 → IAH 2027-01-04 17:53:00; 1 stop(s) via MSP; 443 minutes. Local airport times.
    • DL536: SEA 2027-01-04 08:30:00 → MSP 2027-01-04 13:48:00; layover at MSP: 60 minutes.
    • DL2644: MSP 2027-01-04 14:48:00 → IAH 2027-01-04 17:53:00.

2026-12-21 → 2027-01-04 · $504.00

  • WestJet WS1541 / WS1552: IAH 2026-12-21 08:00:00 → SEA 2026-12-21 13:40:00; 1 stop(s) via YYC; 460 minutes. Local airport times.
    • WS1541: IAH 2026-12-21 08:00:00 → YYC 2026-12-21 12:30:00; layover at YYC: 75 minutes.
    • WS1552: YYC 2026-12-21 13:45:00 → SEA 2026-12-21 13:40:00.
  • Alaska Airlines AS240: SEA 2027-01-04 22:54:00 → IAH 2027-01-05 05:09:00; nonstop; 255 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $423.00

  • Alaska Airlines AS439: IAH 2026-12-21 19:10:00 → SEA 2026-12-21 21:54:00; nonstop; 284 minutes. Local airport times.
  • Alaska Airlines AS240: SEA 2027-01-04 22:54:00 → IAH 2027-01-05 05:09:00; nonstop; 255 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $458.25

  • United Airlines UA1269: IAH 2026-12-21 16:20:00 → SEA 2026-12-21 19:16:00; nonstop; 296 minutes. Local airport times.
  • United Airlines UA2767: SEA 2027-01-04 23:59:00 → IAH 2027-01-05 06:13:00; nonstop; 254 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $402.75

  • Alaska Airlines AS1421 / AS1432: IAH 2026-12-21 18:10:00 → SEA 2026-12-21 23:00:00; 1 stop(s) via PDX; 410 minutes. Local airport times.
    • AS1421: IAH 2026-12-21 18:10:00 → PDX 2026-12-21 20:50:00; layover at PDX: 69 minutes.
    • AS1432: PDX 2026-12-21 21:59:00 → SEA 2026-12-21 23:00:00.
  • Alaska Airlines AS240: SEA 2027-01-04 22:54:00 → IAH 2027-01-05 05:09:00; nonstop; 255 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $431.25

  • United Airlines UA2168 / UA2013: IAH 2026-12-21 12:43:00 → SEA 2026-12-21 17:57:00; 1 stop(s) via DEN; 434 minutes. Local airport times.
    • UA2168: IAH 2026-12-21 12:43:00 → DEN 2026-12-21 14:25:00; layover at DEN: 88 minutes.
    • UA2013: DEN 2026-12-21 15:53:00 → SEA 2026-12-21 17:57:00.
  • United Airlines UA2767: SEA 2027-01-04 23:59:00 → IAH 2027-01-05 06:13:00; nonstop; 254 minutes. Local airport times.

More dates for this route