Travel with Axel,
get the best price.

Route overview: Houston to San Juan (SJU) flight deals

Houston → San Juan

Dec 3, 2026 · return Dec 7, 2026

IAH → SJU1 adulteconomyRound trip

9 flight options · 5 airlines

Nonstop flights

Thu, Dec 3 – Mon, Dec 7

Frontier Airlines
5:25 amIAH
4h 20m
Nonstop
11:45 amSJU
Frontier Airlines
9:48 pmSJU
5h 10m
Nonstop
12:58 am+1IAH

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Mon, Dec 7

United Airlines
11:59 pmIAH
4h 16m
Nonstop
6:15 am+1SJU
United Airlines
3:46 pmSJU
5h 10m
Nonstop
6:56 pmIAH

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Mon, Dec 7

United Airlines
3:05 pmIAH
4h 19m
Nonstop
9:24 pmSJU
United Airlines
3:46 pmSJU
5h 10m
Nonstop
6:56 pmIAH

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Dec 3 – Mon, Dec 7

Delta Air Lines
8:00 amIAH
7h 46m
ATL · 2h 19m
5:46 pmSJU
Frontier Airlines
9:48 pmSJU
5h 10m
Nonstop
12:58 am+1IAH

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Mon, Dec 7

JetBlue Airways
7:00 amIAH
6h 58m
FLL · 1h 42m
3:58 pmSJU
JetBlue Airways
5:01 amSJU
9h 6m
FLL · 3h 16m
12:07 pmIAH

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Mon, Dec 7

American Airlines
8:12 amIAH
7h 35m
CLT · 1h 28m
5:47 pmSJU
American Airlines
1:20 amSJU
8h 59m
DFW · 2h 19m
8:19 amIAH

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Mon, Dec 7

Frontier Airlines
2:16 pmIAH
7h 13m
MCO · 1h 54m
11:29 pmSJU
Frontier Airlines
9:48 pmSJU
5h 10m
Nonstop
12:58 am+1IAH

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Mon, Dec 7

Frontier Airlines
2:22 pmIAH
7h 22m
ATL · 1h 29m
11:44 pmSJU
Frontier Airlines
9:48 pmSJU
5h 10m
Nonstop
12:58 am+1IAH

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Mon, Dec 7

Frontier Airlines
11:57 amIAH
7h 52m
TPA · 2h 37m
9:49 pmSJU
Frontier Airlines
9:48 pmSJU
5h 10m
Nonstop
12:58 am+1IAH

Round-trip total · 1 adult · Taxes included

Make this trip yours

IAH ⇄ SJU

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, Frontier 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

Explore this route

All dates for this routeDec 2, 2026 → Dec 6, 2026Dec 4, 2026 → Dec 8, 2026
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.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Houston to San Juan (SJU) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-03 → 2026-12-07Frontier AirlinesF91800 / F91339$235.002026-10-29T01:11:38Z
2026-12-03 → 2026-12-07United AirlinesUA1497 / UA668$445.002026-10-29T01:11:38Z
2026-12-03 → 2026-12-07Delta Air Lines / Frontier AirlinesDL1315 + DL1946 / F91339$325.002026-10-29T01:11:38Z
2026-12-03 → 2026-12-07JetBlue AirwaysB62380 + B6253 / B61654 + B62179$375.002026-10-29T01:11:38Z
2026-12-03 → 2026-12-07American AirlinesAA2765 + AA539 / AA549 + AA3967$395.002026-10-29T01:11:38Z
2026-12-03 → 2026-12-07United AirlinesUA701 / UA668$445.002026-10-29T01:11:38Z
2026-12-03 → 2026-12-07Frontier AirlinesF92030 + F91746 / F91339$245.002026-10-29T01:11:38Z
2026-12-03 → 2026-12-07Frontier AirlinesF94076 + F92300 / F91339$245.002026-10-29T01:11:38Z
2026-12-03 → 2026-12-07Frontier AirlinesF92562 + F93980 / F91339$245.002026-10-29T01:11:38Z

2026-12-03 → 2026-12-07 · $235.00

  • Frontier Airlines F91800: IAH 2026-12-03 05:25:00 → SJU 2026-12-03 11:45:00; nonstop; 260 minutes. Local airport times.
  • Frontier Airlines F91339: SJU 2026-12-07 21:48:00 → IAH 2026-12-08 00:58:00; nonstop; 310 minutes. Local airport times.

2026-12-03 → 2026-12-07 · $445.00

  • United Airlines UA1497: IAH 2026-12-03 23:59:00 → SJU 2026-12-04 06:15:00; nonstop; 256 minutes. Local airport times.
  • United Airlines UA668: SJU 2026-12-07 15:46:00 → IAH 2026-12-07 18:56:00; nonstop; 310 minutes. Local airport times.

2026-12-03 → 2026-12-07 · $325.00

  • Delta Air Lines DL1315 / DL1946: IAH 2026-12-03 08:00:00 → SJU 2026-12-03 17:46:00; 1 stop(s) via ATL; 466 minutes. Local airport times.
    • DL1315: IAH 2026-12-03 08:00:00 → ATL 2026-12-03 11:02:00; layover at ATL: 139 minutes.
    • DL1946: ATL 2026-12-03 13:21:00 → SJU 2026-12-03 17:46:00.
  • Frontier Airlines F91339: SJU 2026-12-07 21:48:00 → IAH 2026-12-08 00:58:00; nonstop; 310 minutes. Local airport times.

2026-12-03 → 2026-12-07 · $375.00

  • JetBlue Airways B62380 / B6253: IAH 2026-12-03 07:00:00 → SJU 2026-12-03 15:58:00; 1 stop(s) via FLL; 418 minutes. Local airport times.
    • B62380: IAH 2026-12-03 07:00:00 → FLL 2026-12-03 10:38:00; layover at FLL: 102 minutes.
    • B6253: FLL 2026-12-03 12:20:00 → SJU 2026-12-03 15:58:00.
  • JetBlue Airways B61654 / B62179: SJU 2026-12-07 05:01:00 → IAH 2026-12-07 12:07:00; 1 stop(s) via FLL; 546 minutes. Local airport times.
    • B61654: SJU 2026-12-07 05:01:00 → FLL 2026-12-07 06:48:00; layover at FLL: 196 minutes.
    • B62179: FLL 2026-12-07 10:04:00 → IAH 2026-12-07 12:07:00.

2026-12-03 → 2026-12-07 · $395.00

  • American Airlines AA2765 / AA539: IAH 2026-12-03 08:12:00 → SJU 2026-12-03 17:47:00; 1 stop(s) via CLT; 455 minutes. Local airport times.
    • AA2765: IAH 2026-12-03 08:12:00 → CLT 2026-12-03 11:40:00; layover at CLT: 88 minutes.
    • AA539: CLT 2026-12-03 13:08:00 → SJU 2026-12-03 17:47:00.
  • American Airlines AA549 / AA3967: SJU 2026-12-07 01:20:00 → IAH 2026-12-07 08:19:00; 1 stop(s) via DFW; 539 minutes. Local airport times.
    • AA549: SJU 2026-12-07 01:20:00 → DFW 2026-12-07 04:41:00; layover at DFW: 139 minutes.
    • AA3967: DFW 2026-12-07 07:00:00 → IAH 2026-12-07 08:19:00.

2026-12-03 → 2026-12-07 · $445.00

  • United Airlines UA701: IAH 2026-12-03 15:05:00 → SJU 2026-12-03 21:24:00; nonstop; 259 minutes. Local airport times.
  • United Airlines UA668: SJU 2026-12-07 15:46:00 → IAH 2026-12-07 18:56:00; nonstop; 310 minutes. Local airport times.

2026-12-03 → 2026-12-07 · $245.00

  • Frontier Airlines F92030 / F91746: IAH 2026-12-03 14:16:00 → SJU 2026-12-03 23:29:00; 1 stop(s) via MCO; 433 minutes. Local airport times.
    • F92030: IAH 2026-12-03 14:16:00 → MCO 2026-12-03 17:42:00; layover at MCO: 114 minutes.
    • F91746: MCO 2026-12-03 19:36:00 → SJU 2026-12-03 23:29:00.
  • Frontier Airlines F91339: SJU 2026-12-07 21:48:00 → IAH 2026-12-08 00:58:00; nonstop; 310 minutes. Local airport times.

2026-12-03 → 2026-12-07 · $245.00

  • Frontier Airlines F94076 / F92300: IAH 2026-12-03 14:22:00 → SJU 2026-12-03 23:44:00; 1 stop(s) via ATL; 442 minutes. Local airport times.
    • F94076: IAH 2026-12-03 14:22:00 → ATL 2026-12-03 17:37:00; layover at ATL: 89 minutes.
    • F92300: ATL 2026-12-03 19:06:00 → SJU 2026-12-03 23:44:00.
  • Frontier Airlines F91339: SJU 2026-12-07 21:48:00 → IAH 2026-12-08 00:58:00; nonstop; 310 minutes. Local airport times.

2026-12-03 → 2026-12-07 · $245.00

  • Frontier Airlines F92562 / F93980: IAH 2026-12-03 11:57:00 → SJU 2026-12-03 21:49:00; 1 stop(s) via TPA; 472 minutes. Local airport times.
    • F92562: IAH 2026-12-03 11:57:00 → TPA 2026-12-03 15:09:00; layover at TPA: 157 minutes.
    • F93980: TPA 2026-12-03 17:46:00 → SJU 2026-12-03 21:49:00.
  • Frontier Airlines F91339: SJU 2026-12-07 21:48:00 → IAH 2026-12-08 00:58:00; nonstop; 310 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Houston (IAH) to San Juan (SJU) · Dec 3, 2026 · return Dec 7, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Houston to San Juan (SJU) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.