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Houston → Seattle

Dec 13, 2026 · return Dec 23, 2026

IAH → SEA1 adulteconomyRound trip

10 flight options · 6 airlines

Nonstop flights

Sun, Dec 13 – Wed, Dec 23

Alaska Airlines
6:29 amIAH
5h
Nonstop
9:29 amSEA
Alaska Airlines
10:44 amSEA
4h 19m
Nonstop
5:03 pmIAH

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 23

United Airlines
7:57 pmIAH
5h 2m
Nonstop
10:59 pmSEA
United Airlines
11:59 pmSEA
4h 14m
Nonstop
6:13 am+1IAH

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 23

Alaska Airlines
7:10 pmIAH
4h 44m
Nonstop
9:54 pmSEA
Alaska Airlines
10:44 amSEA
4h 19m
Nonstop
5:03 pmIAH

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 23

United Airlines
10:05 amIAH
5h 8m
Nonstop
1:13 pmSEA
United Airlines
11:59 pmSEA
4h 14m
Nonstop
6:13 am+1IAH

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 13 – Wed, Dec 23

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

Sun, Dec 13 – Wed, Dec 23

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

Sun, Dec 13 – Wed, Dec 23

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

Sun, Dec 13 – Wed, Dec 23

WestJet
8:00 amIAH
7h 40m
YYC · 1h 15m
1:40 pmSEA
Alaska Airlines
10:44 amSEA
4h 19m
Nonstop
5:03 pmIAH

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 23

Alaska Airlines
6:10 pmIAH
6h 50m
PDX · 1h 9m
11:00 pmSEA
Alaska Airlines
10:44 amSEA
4h 19m
Nonstop
5:03 pmIAH

Round-trip total · 1 adult · Taxes included

Sun, Dec 13 – Wed, Dec 23

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 routeOct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 13, 2026 → Nov 16, 2026Nov 14, 2026 → Nov 21, 2026Nov 24, 2026 → Nov 29, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 11, 2026 → Dec 14, 2026Dec 12, 2026 → Dec 19, 2026Dec 22, 2026 → Dec 27, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Dec 30, 2026 → Jan 2, 2027Jan 8, 2027 → Jan 11, 2027Jan 9, 2027 → Jan 16, 2027Jan 15, 2027 → Jan 18, 2027Jan 22, 2027 → Jan 25, 2027Jan 23, 2027 → Jan 30, 2027Feb 5, 2027 → Feb 8, 2027Feb 6, 2027 → Feb 13, 2027Feb 12, 2027 → Feb 15, 2027Mar 5, 2027 → Mar 8, 2027Mar 6, 2027 → Mar 13, 2027Mar 25, 2027 → Mar 29, 2027Apr 2, 2027 → Apr 5, 2027Apr 3, 2027 → Apr 10, 2027Apr 30, 2027 → May 3, 2027May 1, 2027 → May 8, 2027May 28, 2027 → May 31, 2027May 29, 2027 → Jun 5, 2027Jun 25, 2027 → Jun 28, 2027Jun 26, 2027 → Jul 3, 2027Jul 2, 2027 → Jul 6, 2027Jul 23, 2027 → Jul 26, 2027Jul 24, 2027 → Jul 31, 2027Aug 20, 2027 → Aug 23, 2027Aug 21, 2027 → Aug 28, 2027Sep 3, 2027 → Sep 6, 2027Sep 17, 2027 → Sep 20, 2027Oct 30, 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)
2026-12-13 → 2026-12-23Alaska AirlinesAS280 / AS438$423.002026-10-29T01:11:30Z
2026-12-13 → 2026-12-23United AirlinesUA2341 / UA2767$458.252026-10-29T01:11:30Z
2026-12-13 → 2026-12-23Frontier AirlinesF93229 + F9605 / F91916 + F92996$235.002026-10-29T01:11:30Z
2026-12-13 → 2026-12-23American AirlinesAA2873 + AA2177 / AA2073 + AA3232$399.502026-10-29T01:11:30Z
2026-12-13 → 2026-12-23Delta Air LinesDL1583 + DL2995 / DL536 + DL2644$434.752026-10-29T01:11:30Z
2026-12-13 → 2026-12-23WestJet / Alaska AirlinesWS1541 + WS1552 / AS438$483.002026-10-29T01:11:30Z
2026-12-13 → 2026-12-23Alaska AirlinesAS439 / AS438$423.002026-10-29T01:11:30Z
2026-12-13 → 2026-12-23United AirlinesUA1062 / UA2767$458.252026-10-29T01:11:30Z
2026-12-13 → 2026-12-23Alaska AirlinesAS1421 + AS1432 / AS438$408.002026-10-29T01:11:30Z
2026-12-13 → 2026-12-23United AirlinesUA2168 + UA2013 / UA2767$438.252026-10-29T01:11:30Z

2026-12-13 → 2026-12-23 · $423.00

  • Alaska Airlines AS280: IAH 2026-12-13 06:29:00 → SEA 2026-12-13 09:29:00; nonstop; 300 minutes. Local airport times.
  • Alaska Airlines AS438: SEA 2026-12-23 10:44:00 → IAH 2026-12-23 17:03:00; nonstop; 259 minutes. Local airport times.

2026-12-13 → 2026-12-23 · $458.25

  • United Airlines UA2341: IAH 2026-12-13 19:57:00 → SEA 2026-12-13 22:59:00; nonstop; 302 minutes. Local airport times.
  • United Airlines UA2767: SEA 2026-12-23 23:59:00 → IAH 2026-12-24 06:13:00; nonstop; 254 minutes. Local airport times.

2026-12-13 → 2026-12-23 · $235.00

  • Frontier Airlines F93229 / F9605: IAH 2026-12-13 06:26:00 → SEA 2026-12-13 12:22:00; 1 stop(s) via DEN; 476 minutes. Local airport times.
    • F93229: IAH 2026-12-13 06:26:00 → DEN 2026-12-13 08:05:00; layover at DEN: 123 minutes.
    • F9605: DEN 2026-12-13 10:08:00 → SEA 2026-12-13 12:22:00.
  • Frontier Airlines F91916 / F92996: SEA 2026-12-23 16:37:00 → IAH 2026-12-24 01:23:00; 1 stop(s) via DEN; 406 minutes. Local airport times.
    • F91916: SEA 2026-12-23 16:37:00 → DEN 2026-12-23 20:25:00; layover at DEN: 94 minutes.
    • F92996: DEN 2026-12-23 21:59:00 → IAH 2026-12-24 01:23:00.

2026-12-13 → 2026-12-23 · $399.50

  • American Airlines AA2873 / AA2177: IAH 2026-12-13 14:37:00 → SEA 2026-12-13 20:09:00; 1 stop(s) via PHX; 452 minutes. Local airport times.
    • AA2873: IAH 2026-12-13 14:37:00 → PHX 2026-12-13 16:38:00; layover at PHX: 72 minutes.
    • AA2177: PHX 2026-12-13 17:50:00 → SEA 2026-12-13 20:09:00.
  • American Airlines AA2073 / AA3232: SEA 2026-12-23 15:00:00 → IAH 2026-12-23 23:48:00; 1 stop(s) via PHX; 408 minutes. Local airport times.
    • AA2073: SEA 2026-12-23 15:00:00 → PHX 2026-12-23 18:52:00; layover at PHX: 75 minutes.
    • AA3232: PHX 2026-12-23 20:07:00 → IAH 2026-12-23 23:48:00.

2026-12-13 → 2026-12-23 · $434.75

  • Delta Air Lines DL1583 / DL2995: IAH 2026-12-13 07:20:00 → SEA 2026-12-13 12:36:00; 1 stop(s) via SLC; 436 minutes. Local airport times.
    • DL1583: IAH 2026-12-13 07:20:00 → SLC 2026-12-13 09:45:00; layover at SLC: 90 minutes.
    • DL2995: SLC 2026-12-13 11:15:00 → SEA 2026-12-13 12:36:00.
  • Delta Air Lines DL536 / DL2644: SEA 2026-12-23 08:30:00 → IAH 2026-12-23 17:53:00; 1 stop(s) via MSP; 443 minutes. Local airport times.
    • DL536: SEA 2026-12-23 08:30:00 → MSP 2026-12-23 13:48:00; layover at MSP: 60 minutes.
    • DL2644: MSP 2026-12-23 14:48:00 → IAH 2026-12-23 17:53:00.

2026-12-13 → 2026-12-23 · $483.00

  • WestJet WS1541 / WS1552: IAH 2026-12-13 08:00:00 → SEA 2026-12-13 13:40:00; 1 stop(s) via YYC; 460 minutes. Local airport times.
    • WS1541: IAH 2026-12-13 08:00:00 → YYC 2026-12-13 12:30:00; layover at YYC: 75 minutes.
    • WS1552: YYC 2026-12-13 13:45:00 → SEA 2026-12-13 13:40:00.
  • Alaska Airlines AS438: SEA 2026-12-23 10:44:00 → IAH 2026-12-23 17:03:00; nonstop; 259 minutes. Local airport times.

2026-12-13 → 2026-12-23 · $423.00

  • Alaska Airlines AS439: IAH 2026-12-13 19:10:00 → SEA 2026-12-13 21:54:00; nonstop; 284 minutes. Local airport times.
  • Alaska Airlines AS438: SEA 2026-12-23 10:44:00 → IAH 2026-12-23 17:03:00; nonstop; 259 minutes. Local airport times.

2026-12-13 → 2026-12-23 · $458.25

  • United Airlines UA1062: IAH 2026-12-13 10:05:00 → SEA 2026-12-13 13:13:00; nonstop; 308 minutes. Local airport times.
  • United Airlines UA2767: SEA 2026-12-23 23:59:00 → IAH 2026-12-24 06:13:00; nonstop; 254 minutes. Local airport times.

2026-12-13 → 2026-12-23 · $408.00

  • Alaska Airlines AS1421 / AS1432: IAH 2026-12-13 18:10:00 → SEA 2026-12-13 23:00:00; 1 stop(s) via PDX; 410 minutes. Local airport times.
    • AS1421: IAH 2026-12-13 18:10:00 → PDX 2026-12-13 20:50:00; layover at PDX: 69 minutes.
    • AS1432: PDX 2026-12-13 21:59:00 → SEA 2026-12-13 23:00:00.
  • Alaska Airlines AS438: SEA 2026-12-23 10:44:00 → IAH 2026-12-23 17:03:00; nonstop; 259 minutes. Local airport times.

2026-12-13 → 2026-12-23 · $438.25

  • United Airlines UA2168 / UA2013: IAH 2026-12-13 12:43:00 → SEA 2026-12-13 17:57:00; 1 stop(s) via DEN; 434 minutes. Local airport times.
    • UA2168: IAH 2026-12-13 12:43:00 → DEN 2026-12-13 14:25:00; layover at DEN: 88 minutes.
    • UA2013: DEN 2026-12-13 15:53:00 → SEA 2026-12-13 17:57:00.
  • United Airlines UA2767: SEA 2026-12-23 23:59:00 → IAH 2026-12-24 06:13:00; nonstop; 254 minutes. Local airport times.

More dates for this route