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Seattle → Houston

Dec 21, 2026 · one way

SEA → IAH1 adulteconomyOne way

10 flight options · 5 airlines

Nonstop flights

Mon, Dec 21 · One way

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

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

United Airlines
7:05 amSEA
4h 16m
Nonstop
1:21 pmIAH

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Alaska Airlines
10:44 amSEA
4h 19m
Nonstop
5:03 pmIAH

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

United Airlines
11:59 pmSEA
4h 14m
Nonstop
6:13 am+1IAH

One-way total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 · One way

Frontier Airlines
4:37 pmSEA
6h 46m
DEN · 1h 34m
1:23 am+1IAH

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

American Airlines
3:00 pmSEA
6h 48m
PHX · 1h 15m
11:48 pmIAH

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Delta Air Lines
8:30 amSEA
7h 23m
MSP · 1h
5:53 pmIAH

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

American Airlines
12:47 amSEA
7h 20m
DFW · 2h 6m
10:07 amIAH

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Alaska Airlines
12:30 amSEA
7h 37m
DFW · 2h 25m
10:07 amIAH

One-way total · 1 adult · Taxes included

Mon, Dec 21 · One way

Delta Air Lines
1:25 pmSEA
6h 33m
SLC · 1h 29m
9:58 pmIAH

One-way 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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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 · one wayAlaska AirlinesAS240$287.002026-10-29T01:15:29Z
2026-12-21 · one wayUnited AirlinesUA2135$301.002026-10-29T01:15:29Z
2026-12-21 · one wayFrontier AirlinesF91916 + F92996$154.002026-10-29T01:15:29Z
2026-12-21 · one wayAmerican AirlinesAA2073 + AA3232$259.002026-10-29T01:15:29Z
2026-12-21 · one wayDelta Air LinesDL536 + DL2644$273.002026-10-29T01:15:29Z
2026-12-21 · one wayAlaska AirlinesAS438$287.002026-10-29T01:15:29Z
2026-12-21 · one wayUnited AirlinesUA2767$301.002026-10-29T01:15:29Z
2026-12-21 · one wayAmerican AirlinesAA630 + AA5147$259.002026-10-29T01:15:29Z
2026-12-21 · one wayAlaska AirlinesAS424 + AA5147$266.002026-10-29T01:15:29Z
2026-12-21 · one wayDelta Air LinesDL1120 + DL2514$273.002026-10-29T01:15:29Z

2026-12-21 · one way · $287.00

  • Alaska Airlines AS240: SEA 2026-12-21 22:54:00 → IAH 2026-12-22 05:09:00; nonstop; 255 minutes. Local airport times.

2026-12-21 · one way · $301.00

  • United Airlines UA2135: SEA 2026-12-21 07:05:00 → IAH 2026-12-21 13:21:00; nonstop; 256 minutes. Local airport times.

2026-12-21 · one way · $154.00

  • 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.

2026-12-21 · one way · $259.00

  • 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.

2026-12-21 · one way · $273.00

  • 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.

2026-12-21 · one way · $287.00

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

2026-12-21 · one way · $301.00

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

2026-12-21 · one way · $259.00

  • 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.

2026-12-21 · one way · $266.00

  • 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.

2026-12-21 · one way · $273.00

  • 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.

More dates for this route