Travel with Axel,
get the best price.

Houston → San Diego

Dec 4, 2026 · return Dec 8, 2026

IAH → SAN1 adulteconomyRound trip

8 flight options · 4 airlines

Nonstop flights

Fri, Dec 4 – Tue, Dec 8

United Airlines
9:30 amIAH
3h 29m
Nonstop
10:59 amSAN
United Airlines
10:20 amSAN
3h 14m
Nonstop
3:34 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Dec 4 – Tue, Dec 8

United Airlines
2:31 pmIAH
3h 38m
Nonstop
4:09 pmSAN
United Airlines
10:20 amSAN
3h 14m
Nonstop
3:34 pmIAH

Round-trip total · 1 adult · Taxes included

One-stop flights

Fri, Dec 4 – Tue, Dec 8

Frontier Airlines
7:00 amIAH
6h 37m
LAS · 1h 43m
11:37 amSAN
Frontier Airlines
4:16 pmSAN
6h 26m
DEN · 1h 28m
12:42 am+1IAH

Round-trip total · 1 adult · Taxes included

Fri, Dec 4 – Tue, Dec 8

American Airlines
6:00 amIAH
6h 16m
DFW · 1h 27m
10:16 amSAN
American Airlines
4:30 pmSAN
5h 18m
PHX · 1h 8m
11:48 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Dec 4 – Tue, Dec 8

Delta Air Lines
7:20 amIAH
7h 4m
SLC · 1h 41m
12:24 pmSAN
Delta Air Lines
3:59 pmSAN
5h 54m
LAX · 1h 39m
11:53 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Dec 4 – Tue, Dec 8

Frontier Airlines
6:00 amIAH
6h 19m
DEN · 1h 10m
10:19 amSAN
Frontier Airlines
4:16 pmSAN
6h 26m
DEN · 1h 28m
12:42 am+1IAH

Round-trip total · 1 adult · Taxes included

Fri, Dec 4 – Tue, Dec 8

American Airlines
2:37 pmIAH
5h 47m
PHX · 1h 27m
6:24 pmSAN
American Airlines
4:30 pmSAN
5h 18m
PHX · 1h 8m
11:48 pmIAH

Round-trip total · 1 adult · Taxes included

Fri, Dec 4 – Tue, Dec 8

United Airlines
12:43 pmIAH
6h 32m
DEN · 1h 20m
5:15 pmSAN
United Airlines
10:20 amSAN
3h 14m
Nonstop
3:34 pmIAH

Round-trip total · 1 adult · Taxes included

Make this trip yours

IAH ⇄ SAN

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, United 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.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

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)
2026-12-04 → 2026-12-08United AirlinesUA2491 / UA1980$345.002026-10-29T01:11:30Z
2026-12-04 → 2026-12-08Frontier AirlinesF91489 + F91326 / F92422 + F92996$195.002026-10-29T01:11:30Z
2026-12-04 → 2026-12-08American AirlinesAA2551 + AA3319 / AA1950 + AA3232$330.002026-10-29T01:11:30Z
2026-12-04 → 2026-12-08Delta Air LinesDL1583 + DL1296 / DL4001 + DL1287$350.002026-10-29T01:11:30Z
2026-12-04 → 2026-12-08United AirlinesUA2212 / UA1980$345.002026-10-29T01:11:30Z
2026-12-04 → 2026-12-08Frontier AirlinesF93229 + F92817 / F92422 + F92996$195.002026-10-29T01:11:30Z
2026-12-04 → 2026-12-08American AirlinesAA2873 + AA2016 / AA1950 + AA3232$330.002026-10-29T01:11:30Z
2026-12-04 → 2026-12-08United AirlinesUA2168 + UA1281 / UA1980$332.502026-10-29T01:11:30Z

2026-12-04 → 2026-12-08 · $345.00

  • United Airlines UA2491: IAH 2026-12-04 09:30:00 → SAN 2026-12-04 10:59:00; nonstop; 209 minutes. Local airport times.
  • United Airlines UA1980: SAN 2026-12-08 10:20:00 → IAH 2026-12-08 15:34:00; nonstop; 194 minutes. Local airport times.

2026-12-04 → 2026-12-08 · $195.00

  • Frontier Airlines F91489 / F91326: IAH 2026-12-04 07:00:00 → SAN 2026-12-04 11:37:00; 1 stop(s) via LAS; 397 minutes. Local airport times.
    • F91489: IAH 2026-12-04 07:00:00 → LAS 2026-12-04 08:32:00; layover at LAS: 103 minutes.
    • F91326: LAS 2026-12-04 10:15:00 → SAN 2026-12-04 11:37:00.
  • Frontier Airlines F92422 / F92996: SAN 2026-12-08 16:16:00 → IAH 2026-12-09 00:42:00; 1 stop(s) via DEN; 386 minutes. Local airport times.
    • F92422: SAN 2026-12-08 16:16:00 → DEN 2026-12-08 19:50:00; layover at DEN: 88 minutes.
    • F92996: DEN 2026-12-08 21:18:00 → IAH 2026-12-09 00:42:00.

2026-12-04 → 2026-12-08 · $330.00

  • American Airlines AA2551 / AA3319: IAH 2026-12-04 06:00:00 → SAN 2026-12-04 10:16:00; 1 stop(s) via DFW; 376 minutes. Local airport times.
    • AA2551: IAH 2026-12-04 06:00:00 → DFW 2026-12-04 07:33:00; layover at DFW: 87 minutes.
    • AA3319: DFW 2026-12-04 09:00:00 → SAN 2026-12-04 10:16:00.
  • American Airlines AA1950 / AA3232: SAN 2026-12-08 16:30:00 → IAH 2026-12-08 23:48:00; 1 stop(s) via PHX; 318 minutes. Local airport times.
    • AA1950: SAN 2026-12-08 16:30:00 → PHX 2026-12-08 18:59:00; layover at PHX: 68 minutes.
    • AA3232: PHX 2026-12-08 20:07:00 → IAH 2026-12-08 23:48:00.

2026-12-04 → 2026-12-08 · $350.00

  • Delta Air Lines DL1583 / DL1296: IAH 2026-12-04 07:20:00 → SAN 2026-12-04 12:24:00; 1 stop(s) via SLC; 424 minutes. Local airport times.
    • DL1583: IAH 2026-12-04 07:20:00 → SLC 2026-12-04 09:45:00; layover at SLC: 101 minutes.
    • DL1296: SLC 2026-12-04 11:26:00 → SAN 2026-12-04 12:24:00.
  • Delta Air Lines DL4001 / DL1287: SAN 2026-12-08 15:59:00 → IAH 2026-12-08 23:53:00; 1 stop(s) via LAX; 354 minutes. Local airport times.
    • DL4001: SAN 2026-12-08 15:59:00 → LAX 2026-12-08 17:01:00; layover at LAX: 99 minutes.
    • DL1287: LAX 2026-12-08 18:40:00 → IAH 2026-12-08 23:53:00.

2026-12-04 → 2026-12-08 · $345.00

  • United Airlines UA2212: IAH 2026-12-04 14:31:00 → SAN 2026-12-04 16:09:00; nonstop; 218 minutes. Local airport times.
  • United Airlines UA1980: SAN 2026-12-08 10:20:00 → IAH 2026-12-08 15:34:00; nonstop; 194 minutes. Local airport times.

2026-12-04 → 2026-12-08 · $195.00

  • Frontier Airlines F93229 / F92817: IAH 2026-12-04 06:00:00 → SAN 2026-12-04 10:19:00; 1 stop(s) via DEN; 379 minutes. Local airport times.
    • F93229: IAH 2026-12-04 06:00:00 → DEN 2026-12-04 07:39:00; layover at DEN: 70 minutes.
    • F92817: DEN 2026-12-04 08:49:00 → SAN 2026-12-04 10:19:00.
  • Frontier Airlines F92422 / F92996: SAN 2026-12-08 16:16:00 → IAH 2026-12-09 00:42:00; 1 stop(s) via DEN; 386 minutes. Local airport times.
    • F92422: SAN 2026-12-08 16:16:00 → DEN 2026-12-08 19:50:00; layover at DEN: 88 minutes.
    • F92996: DEN 2026-12-08 21:18:00 → IAH 2026-12-09 00:42:00.

2026-12-04 → 2026-12-08 · $330.00

  • American Airlines AA2873 / AA2016: IAH 2026-12-04 14:37:00 → SAN 2026-12-04 18:24:00; 1 stop(s) via PHX; 347 minutes. Local airport times.
    • AA2873: IAH 2026-12-04 14:37:00 → PHX 2026-12-04 16:38:00; layover at PHX: 87 minutes.
    • AA2016: PHX 2026-12-04 18:05:00 → SAN 2026-12-04 18:24:00.
  • American Airlines AA1950 / AA3232: SAN 2026-12-08 16:30:00 → IAH 2026-12-08 23:48:00; 1 stop(s) via PHX; 318 minutes. Local airport times.
    • AA1950: SAN 2026-12-08 16:30:00 → PHX 2026-12-08 18:59:00; layover at PHX: 68 minutes.
    • AA3232: PHX 2026-12-08 20:07:00 → IAH 2026-12-08 23:48:00.

2026-12-04 → 2026-12-08 · $332.50

  • United Airlines UA2168 / UA1281: IAH 2026-12-04 12:43:00 → SAN 2026-12-04 17:15:00; 1 stop(s) via DEN; 392 minutes. Local airport times.
    • UA2168: IAH 2026-12-04 12:43:00 → DEN 2026-12-04 14:25:00; layover at DEN: 80 minutes.
    • UA1281: DEN 2026-12-04 15:45:00 → SAN 2026-12-04 17:15:00.
  • United Airlines UA1980: SAN 2026-12-08 10:20:00 → IAH 2026-12-08 15:34:00; nonstop; 194 minutes. Local airport times.

More dates for this route