San Francisco → San Jose
Dec 21, 2026 · one way
SFO → SJO1 adulteconomyOne way
7 flight options · 5 airlines
Nonstop flights
One-stop flights
Make this trip yours
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
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 dates | Airline | Flights | Total price | Price issued (UTC) |
|---|---|---|---|---|
| 2026-12-21 · one way | United Airlines | UA2312 | $478.50 | 2026-10-29T01:19:50Z |
| 2026-12-21 · one way | Avianca | AV559 + AV609 | $319.00 | 2026-10-29T01:19:50Z |
| 2026-12-21 · one way | Copa Airlines | CM383 + CM342 | $377.00 | 2026-10-29T01:19:50Z |
| 2026-12-21 · one way | American Airlines | AA1909 + AA3041 | $391.50 | 2026-10-29T01:19:50Z |
| 2026-12-21 · one way | Alaska Airlines | AS595 + AS1440 | $406.00 | 2026-10-29T01:19:50Z |
| 2026-12-21 · one way | United Airlines | UA604 + UA1096 | $406.00 | 2026-10-29T01:19:50Z |
| 2026-12-21 · one way | United Airlines | UA1799 + UA1202 | $406.00 | 2026-10-29T01:19:50Z |
2026-12-21 · one way · $478.50
- United Airlines UA2312: SFO 2026-12-21 00:08:00 → SJO 2026-12-21 08:32:00; nonstop; 384 minutes. Local airport times.
2026-12-21 · one way · $319.00
- Avianca AV559 / AV609: SFO 2026-12-21 01:30:00 → SJO 2026-12-21 11:25:00; 1 stop(s) via SAL; 475 minutes. Local airport times.
- AV559: SFO 2026-12-21 01:30:00 → SAL 2026-12-21 08:55:00; layover at SAL: 75 minutes.
- AV609: SAL 2026-12-21 10:10:00 → SJO 2026-12-21 11:25:00.
2026-12-21 · one way · $377.00
- Copa Airlines CM383 / CM342: SFO 2026-12-21 00:33:00 → SJO 2026-12-21 13:51:00; 1 stop(s) via PTY; 678 minutes. Local airport times.
- CM383: SFO 2026-12-21 00:33:00 → PTY 2026-12-21 10:46:00; layover at PTY: 162 minutes.
- CM342: PTY 2026-12-21 13:28:00 → SJO 2026-12-21 13:51:00.
2026-12-21 · one way · $391.50
- American Airlines AA1909 / AA3041: SFO 2026-12-21 21:35:00 → SJO 2026-12-22 10:35:00; 1 stop(s) via MIA; 660 minutes. Local airport times.
- AA1909: SFO 2026-12-21 21:35:00 → MIA 2026-12-22 05:59:00; layover at MIA: 152 minutes.
- AA3041: MIA 2026-12-22 08:31:00 → SJO 2026-12-22 10:35:00.
2026-12-21 · one way · $406.00
- Alaska Airlines AS595 / AS1440: SFO 2026-12-21 13:13:00 → SJO 2026-12-22 00:26:00; 1 stop(s) via LAX; 553 minutes. Local airport times.
- AS595: SFO 2026-12-21 13:13:00 → LAX 2026-12-21 14:41:00; layover at LAX: 122 minutes.
- AS1440: LAX 2026-12-21 16:43:00 → SJO 2026-12-22 00:26:00.
2026-12-21 · one way · $406.00
- United Airlines UA604 / UA1096: SFO 2026-12-21 00:45:00 → SJO 2026-12-21 13:22:00; 1 stop(s) via IAH; 637 minutes. Local airport times.
- UA604: SFO 2026-12-21 00:45:00 → IAH 2026-12-21 06:32:00; layover at IAH: 186 minutes.
- UA1096: IAH 2026-12-21 09:38:00 → SJO 2026-12-21 13:22:00.
2026-12-21 · one way · $406.00
- United Airlines UA1799 / UA1202: SFO 2026-12-21 18:48:00 → SJO 2026-12-22 06:25:00; 1 stop(s) via LAX; 577 minutes. Local airport times.
- UA1799: SFO 2026-12-21 18:48:00 → LAX 2026-12-21 20:22:00; layover at LAX: 140 minutes.
- UA1202: LAX 2026-12-21 22:42:00 → SJO 2026-12-22 06:25:00.