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Seattle → Houston

Dec 21, 2026 · return Dec 26, 2026

SEA → IAH1 adulteconomyRound trip

10 flight options · 5 airlines

Nonstop flights

Mon, Dec 21 – Sat, Dec 26

Alaska Airlines
10:44 amSEA
4h 19m
Nonstop
5:03 pmIAH
Alaska Airlines
2:33 pmIAH
4h 57m
Nonstop
5:30 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sat, Dec 26

United Airlines
7:05 amSEA
4h 16m
Nonstop
1:21 pmIAH
United Airlines
7:55 pmIAH
4h 59m
Nonstop
10:54 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sat, Dec 26

Alaska Airlines
10:54 pmSEA
4h 15m
Nonstop
5:09 am+1IAH
Alaska Airlines
2:33 pmIAH
4h 57m
Nonstop
5:30 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sat, Dec 26

United Airlines
11:59 pmSEA
4h 14m
Nonstop
6:13 am+1IAH
United Airlines
7:55 pmIAH
4h 59m
Nonstop
10:54 pmSEA

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Sat, Dec 26

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

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sat, Dec 26

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

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sat, Dec 26

Delta Air Lines
1:25 pmSEA
6h 33m
SLC · 1h 29m
9:58 pmIAH
Delta Air Lines
7:20 amIAH
7h 16m
SLC · 1h 30m
12:36 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sat, Dec 26

American Airlines
12:47 amSEA
7h 20m
DFW · 2h 6m
10:07 amIAH
American Airlines
2:37 pmIAH
7h 32m
PHX · 1h 12m
8:09 pmSEA

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sat, Dec 26

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

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Sat, Dec 26

Alaska Airlines
12:30 amSEA
7h 37m
DFW · 2h 25m
10:07 amIAH
Alaska Airlines
2:33 pmIAH
4h 57m
Nonstop
5:30 pmSEA

Round-trip total · 1 adult · Taxes included

Make this trip yours

SEA ⇄ IAH

Economy

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

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Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Alaska Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • 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 → 2026-12-26Alaska AirlinesAS438 / AS439$546.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-26United AirlinesUA2135 / UA2341$574.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-26Frontier AirlinesF91916 + F92996 / F93229 + F9605$294.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-26American AirlinesAA2073 + AA3232 / AA2873 + AA2177$490.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-26Delta Air LinesDL1120 + DL2514 / DL1583 + DL2995$518.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-26Alaska AirlinesAS240 / AS439$546.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-26United AirlinesUA2767 / UA2341$574.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-26American AirlinesAA630 + AA5147 / AA2873 + AA2177$490.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-26Delta Air LinesDL536 + DL2644 / DL1583 + DL2995$518.002026-10-29T01:15:29Z
2026-12-21 → 2026-12-26Alaska AirlinesAS424 + AA5147 / AS439$525.002026-10-29T01:15:29Z

2026-12-21 → 2026-12-26 · $546.00

  • Alaska Airlines AS438: SEA 2026-12-21 10:44:00 → IAH 2026-12-21 17:03:00; nonstop; 259 minutes. Local airport times.
  • Alaska Airlines AS439: IAH 2026-12-26 14:33:00 → SEA 2026-12-26 17:30:00; nonstop; 297 minutes. Local airport times.

2026-12-21 → 2026-12-26 · $574.00

  • United Airlines UA2135: SEA 2026-12-21 07:05:00 → IAH 2026-12-21 13:21:00; nonstop; 256 minutes. Local airport times.
  • United Airlines UA2341: IAH 2026-12-26 19:55:00 → SEA 2026-12-26 22:54:00; nonstop; 299 minutes. Local airport times.

2026-12-21 → 2026-12-26 · $294.00

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

2026-12-21 → 2026-12-26 · $490.00

  • American Airlines AA2073 / AA3232: SEA 2026-12-21 15:00:00 → IAH 2026-12-21 23:48:00; 1 stop(s) via PHX; 408 minutes. Local airport times.
    • AA2073: SEA 2026-12-21 15:00:00 → PHX 2026-12-21 18:52:00; layover at PHX: 75 minutes.
    • AA3232: PHX 2026-12-21 20:07:00 → IAH 2026-12-21 23:48:00.
  • American Airlines AA2873 / AA2177: IAH 2026-12-26 14:37:00 → SEA 2026-12-26 20:09:00; 1 stop(s) via PHX; 452 minutes. Local airport times.
    • AA2873: IAH 2026-12-26 14:37:00 → PHX 2026-12-26 16:38:00; layover at PHX: 72 minutes.
    • AA2177: PHX 2026-12-26 17:50:00 → SEA 2026-12-26 20:09:00.

2026-12-21 → 2026-12-26 · $518.00

  • Delta Air Lines DL1120 / DL2514: SEA 2026-12-21 13:25:00 → IAH 2026-12-21 21:58:00; 1 stop(s) via SLC; 393 minutes. Local airport times.
    • DL1120: SEA 2026-12-21 13:25:00 → SLC 2026-12-21 16:26:00; layover at SLC: 89 minutes.
    • DL2514: SLC 2026-12-21 17:55:00 → IAH 2026-12-21 21:58:00.
  • Delta Air Lines DL1583 / DL2995: IAH 2026-12-26 07:20:00 → SEA 2026-12-26 12:36:00; 1 stop(s) via SLC; 436 minutes. Local airport times.
    • DL1583: IAH 2026-12-26 07:20:00 → SLC 2026-12-26 09:45:00; layover at SLC: 90 minutes.
    • DL2995: SLC 2026-12-26 11:15:00 → SEA 2026-12-26 12:36:00.

2026-12-21 → 2026-12-26 · $546.00

  • Alaska Airlines AS240: SEA 2026-12-21 22:54:00 → IAH 2026-12-22 05:09:00; nonstop; 255 minutes. Local airport times.
  • Alaska Airlines AS439: IAH 2026-12-26 14:33:00 → SEA 2026-12-26 17:30:00; nonstop; 297 minutes. Local airport times.

2026-12-21 → 2026-12-26 · $574.00

  • United Airlines UA2767: SEA 2026-12-21 23:59:00 → IAH 2026-12-22 06:13:00; nonstop; 254 minutes. Local airport times.
  • United Airlines UA2341: IAH 2026-12-26 19:55:00 → SEA 2026-12-26 22:54:00; nonstop; 299 minutes. Local airport times.

2026-12-21 → 2026-12-26 · $490.00

  • American Airlines AA630 / AA5147: SEA 2026-12-21 00:47:00 → IAH 2026-12-21 10:07:00; 1 stop(s) via DFW; 440 minutes. Local airport times.
    • AA630: SEA 2026-12-21 00:47:00 → DFW 2026-12-21 06:39:00; layover at DFW: 126 minutes.
    • AA5147: DFW 2026-12-21 08:45:00 → IAH 2026-12-21 10:07:00.
  • American Airlines AA2873 / AA2177: IAH 2026-12-26 14:37:00 → SEA 2026-12-26 20:09:00; 1 stop(s) via PHX; 452 minutes. Local airport times.
    • AA2873: IAH 2026-12-26 14:37:00 → PHX 2026-12-26 16:38:00; layover at PHX: 72 minutes.
    • AA2177: PHX 2026-12-26 17:50:00 → SEA 2026-12-26 20:09:00.

2026-12-21 → 2026-12-26 · $518.00

  • Delta Air Lines DL536 / DL2644: SEA 2026-12-21 08:30:00 → IAH 2026-12-21 17:53:00; 1 stop(s) via MSP; 443 minutes. Local airport times.
    • DL536: SEA 2026-12-21 08:30:00 → MSP 2026-12-21 13:48:00; layover at MSP: 60 minutes.
    • DL2644: MSP 2026-12-21 14:48:00 → IAH 2026-12-21 17:53:00.
  • Delta Air Lines DL1583 / DL2995: IAH 2026-12-26 07:20:00 → SEA 2026-12-26 12:36:00; 1 stop(s) via SLC; 436 minutes. Local airport times.
    • DL1583: IAH 2026-12-26 07:20:00 → SLC 2026-12-26 09:45:00; layover at SLC: 90 minutes.
    • DL2995: SLC 2026-12-26 11:15:00 → SEA 2026-12-26 12:36:00.

2026-12-21 → 2026-12-26 · $525.00

  • Alaska Airlines AS424 / AA5147: SEA 2026-12-21 00:30:00 → IAH 2026-12-21 10:07:00; 1 stop(s) via DFW; 457 minutes. Local airport times.
    • AS424: SEA 2026-12-21 00:30:00 → DFW 2026-12-21 06:20:00; layover at DFW: 145 minutes.
    • AA5147: DFW 2026-12-21 08:45:00 → IAH 2026-12-21 10:07:00.
  • Alaska Airlines AS439: IAH 2026-12-26 14:33:00 → SEA 2026-12-26 17:30:00; nonstop; 297 minutes. Local airport times.

More dates for this route