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Dulles → San Jose

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IAD → SJO1 adulteconomy

21 flight options · 4 airlines

Round-trip flights

Fri, Nov 20 – Mon, Nov 23

United Airlines
8:59 amIAD
5h 1m
Nonstop
1:00 pmSJO
United Airlines
2:15 pmSJO
4h 44m
Nonstop
7:59 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Frontier Airlines
7:40 amIAD
7h 36m
ATL · 1h 20m
2:16 pmSJO
Frontier Airlines
3:31 pmSJO
8h 20m
ATL · 2h 15m
12:51 am+1IAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Avianca
3:00 amIAD
9h 25m
SAL · 3h 40m
11:25 amSJO
Avianca
7:00 amSJO
8h 10m
MIA · 2h 40m
4:10 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
6:01 amIAD
9h 34m
MIA · 3h 38m
2:35 pmSJO
American Airlines
2:02 pmSJO
8h 19m
MIA · 2h 25m
11:21 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
8:59 amIAD
5h 1m
Nonstop
1:00 pmSJO
United Airlines
2:15 pmSJO
4h 44m
Nonstop
7:59 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Frontier Airlines
7:40 amIAD
7h 36m
ATL · 1h 20m
2:16 pmSJO
Frontier Airlines
3:31 pmSJO
8h 20m
ATL · 2h 15m
12:51 am+1IAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Avianca
3:00 amIAD
9h 25m
SAL · 3h 40m
11:25 amSJO
Avianca
7:00 amSJO
8h 10m
MIA · 2h 40m
4:10 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
2:42 pmIAD
9h 19m
DFW · 1h 27m
11:01 pmSJO
American Airlines
2:02 pmSJO
8h 19m
MIA · 2h 25m
11:21 pmIAD

Round-trip total · 1 adult · Taxes included

Show 6 more flights

Fri, Nov 20 – Mon, Nov 23

American Airlines
6:00 amIAD
7h 42m
CLT · 1h 25m
12:42 pmSJO
American Airlines
2:02 pmSJO
8h 19m
MIA · 2h 25m
11:21 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
6:01 amIAD
9h 34m
MIA · 3h 38m
2:35 pmSJO
American Airlines
2:02 pmSJO
8h 19m
MIA · 2h 25m
11:21 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
2:42 pmIAD
9h 19m
DFW · 1h 27m
11:01 pmSJO
American Airlines
2:02 pmSJO
8h 19m
MIA · 2h 25m
11:21 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
6:00 amIAD
7h 42m
CLT · 1h 25m
12:42 pmSJO
American Airlines
2:02 pmSJO
8h 19m
MIA · 2h 25m
11:21 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
12:38 pmIAD
8h 15m
EWR · 1h 33m
7:53 pmSJO
United Airlines
2:15 pmSJO
4h 44m
Nonstop
7:59 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
12:38 pmIAD
8h 15m
EWR · 1h 33m
7:53 pmSJO
United Airlines
2:15 pmSJO
4h 44m
Nonstop
7:59 pmIAD

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Nov 20 · One way

United Airlines
8:59 amIAD
5h 1m
Nonstop
1:00 pmSJO

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Frontier Airlines
7:40 amIAD
7h 36m
ATL · 1h 20m
2:16 pmSJO

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Avianca
3:00 amIAD
9h 25m
SAL · 3h 40m
11:25 amSJO

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
6:00 amIAD
7h 42m
CLT · 1h 25m
12:42 pmSJO

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
12:38 pmIAD
8h 15m
EWR · 1h 33m
7:53 pmSJO

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
2:42 pmIAD
9h 19m
DFW · 1h 27m
11:01 pmSJO

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
6:01 amIAD
9h 34m
MIA · 3h 38m
2:35 pmSJO

One-way total · 1 adult · Taxes included

Make this trip yours

IAD ⇄ SJO

Economy

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

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More dates

Nov 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)
2026-11-20 · one wayUnited AirlinesUA2052$270.752026-10-29T01:07:59Z
2026-11-20 → 2026-11-23United AirlinesUA2052 / UA2073$579.982026-10-29T01:07:59Z
2026-11-20 · one wayFrontier AirlinesF94707 + F9215$147.252026-10-29T01:07:59Z
2026-11-20 · one wayAviancaAV591 + AV609$185.252026-10-29T01:07:59Z
2026-11-20 · one wayAmerican AirlinesAA5649 + AA345$232.752026-10-29T01:07:59Z
2026-11-20 → 2026-11-23Frontier AirlinesF94707 + F9215 / F9214 + F94708$318.732026-10-29T01:07:59Z
2026-11-20 → 2026-11-23AviancaAV591 + AV609 / AV604 + UA2435$397.102026-10-29T01:07:59Z
2026-11-20 → 2026-11-23American AirlinesAA552 + AA310 / AA358 + AA551$512.052026-10-29T01:07:59Z
2026-11-27 → 2026-12-04United AirlinesUA2052 / UA2073$593.852026-10-29T01:07:59Z
2026-11-20 · one wayUnited AirlinesUA2823 + UA1222$232.752026-10-29T01:07:59Z
2026-11-20 · one wayAmerican AirlinesAA2774 + AA395$232.752026-10-29T01:07:59Z
2026-11-20 · one wayAmerican AirlinesAA552 + AA310$232.752026-10-29T01:07:59Z
2026-11-27 → 2026-12-04Frontier AirlinesF94707 + F9215 / F9214 + F94708$326.352026-10-29T01:07:59Z
2026-11-27 → 2026-12-04AviancaAV591 + AV609 / AV604 + UA2435$406.602026-10-29T01:07:59Z
2026-11-20 → 2026-11-23American AirlinesAA2774 + AA395 / AA358 + AA551$512.052026-10-29T01:07:59Z
2026-11-20 → 2026-11-23American AirlinesAA5649 + AA345 / AA358 + AA551$512.052026-10-29T01:07:59Z
2026-11-27 → 2026-12-04American AirlinesAA552 + AA310 / AA358 + AA551$524.302026-10-29T01:07:59Z
2026-11-27 → 2026-12-04American AirlinesAA2774 + AA395 / AA358 + AA551$524.302026-10-29T01:07:59Z
2026-11-27 → 2026-12-04American AirlinesAA5649 + AA345 / AA358 + AA551$524.302026-10-29T01:07:59Z
2026-11-20 → 2026-11-23United AirlinesUA2823 + UA1222 / UA2073$546.732026-10-29T01:07:59Z
2026-11-27 → 2026-12-04United AirlinesUA2823 + UA1222 / UA2073$553.952026-10-29T01:07:59Z

2026-11-20 · one way · $270.75

  • United Airlines UA2052: IAD 2026-11-20 08:59:00 → SJO 2026-11-20 13:00:00; nonstop; 301 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $579.98

  • United Airlines UA2052: IAD 2026-11-20 08:59:00 → SJO 2026-11-20 13:00:00; nonstop; 301 minutes. Local airport times.
  • United Airlines UA2073: SJO 2026-11-23 14:15:00 → IAD 2026-11-23 19:59:00; nonstop; 284 minutes. Local airport times.

2026-11-20 · one way · $147.25

  • Frontier Airlines F94707 / F9215: IAD 2026-11-20 07:40:00 → SJO 2026-11-20 14:16:00; 1 stop(s) via ATL; 456 minutes. Local airport times.
    • F94707: IAD 2026-11-20 07:40:00 → ATL 2026-11-20 09:54:00; layover at ATL: 80 minutes.
    • F9215: ATL 2026-11-20 11:14:00 → SJO 2026-11-20 14:16:00.

2026-11-20 · one way · $185.25

  • Avianca AV591 / AV609: IAD 2026-11-20 03:00:00 → SJO 2026-11-20 11:25:00; 1 stop(s) via SAL; 565 minutes. Local airport times.
    • AV591: IAD 2026-11-20 03:00:00 → SAL 2026-11-20 06:30:00; layover at SAL: 220 minutes.
    • AV609: SAL 2026-11-20 10:10:00 → SJO 2026-11-20 11:25:00.

2026-11-20 · one way · $232.75

  • American Airlines AA5649 / AA345: IAD 2026-11-20 06:00:00 → SJO 2026-11-20 12:42:00; 1 stop(s) via CLT; 462 minutes. Local airport times.
    • AA5649: IAD 2026-11-20 06:00:00 → CLT 2026-11-20 07:48:00; layover at CLT: 85 minutes.
    • AA345: CLT 2026-11-20 09:13:00 → SJO 2026-11-20 12:42:00.

2026-11-20 → 2026-11-23 · $318.73

  • Frontier Airlines F94707 / F9215: IAD 2026-11-20 07:40:00 → SJO 2026-11-20 14:16:00; 1 stop(s) via ATL; 456 minutes. Local airport times.
    • F94707: IAD 2026-11-20 07:40:00 → ATL 2026-11-20 09:54:00; layover at ATL: 80 minutes.
    • F9215: ATL 2026-11-20 11:14:00 → SJO 2026-11-20 14:16:00.
  • Frontier Airlines F9214 / F94708: SJO 2026-11-23 15:31:00 → IAD 2026-11-24 00:51:00; 1 stop(s) via ATL; 500 minutes. Local airport times.
    • F9214: SJO 2026-11-23 15:31:00 → ATL 2026-11-23 20:44:00; layover at ATL: 135 minutes.
    • F94708: ATL 2026-11-23 22:59:00 → IAD 2026-11-24 00:51:00.

2026-11-20 → 2026-11-23 · $397.10

  • Avianca AV591 / AV609: IAD 2026-11-20 03:00:00 → SJO 2026-11-20 11:25:00; 1 stop(s) via SAL; 565 minutes. Local airport times.
    • AV591: IAD 2026-11-20 03:00:00 → SAL 2026-11-20 06:30:00; layover at SAL: 220 minutes.
    • AV609: SAL 2026-11-20 10:10:00 → SJO 2026-11-20 11:25:00.
  • Avianca AV604 / UA2435: SJO 2026-11-23 07:00:00 → IAD 2026-11-23 16:10:00; 1 stop(s) via MIA; 490 minutes. Local airport times.
    • AV604: SJO 2026-11-23 07:00:00 → MIA 2026-11-23 10:50:00; layover at MIA: 160 minutes.
    • UA2435: MIA 2026-11-23 13:30:00 → IAD 2026-11-23 16:10:00.

2026-11-20 → 2026-11-23 · $512.05

  • American Airlines AA552 / AA310: IAD 2026-11-20 06:01:00 → SJO 2026-11-20 14:35:00; 1 stop(s) via MIA; 574 minutes. Local airport times.
    • AA552: IAD 2026-11-20 06:01:00 → MIA 2026-11-20 08:50:00; layover at MIA: 218 minutes.
    • AA310: MIA 2026-11-20 12:28:00 → SJO 2026-11-20 14:35:00.
  • American Airlines AA358 / AA551: SJO 2026-11-23 14:02:00 → IAD 2026-11-23 23:21:00; 1 stop(s) via MIA; 499 minutes. Local airport times.
    • AA358: SJO 2026-11-23 14:02:00 → MIA 2026-11-23 18:05:00; layover at MIA: 145 minutes.
    • AA551: MIA 2026-11-23 20:30:00 → IAD 2026-11-23 23:21:00.

2026-11-27 → 2026-12-04 · $593.85

  • United Airlines UA2052: IAD 2026-11-27 08:59:00 → SJO 2026-11-27 13:00:00; nonstop; 301 minutes. Local airport times.
  • United Airlines UA2073: SJO 2026-12-04 14:15:00 → IAD 2026-12-04 19:59:00; nonstop; 284 minutes. Local airport times.

2026-11-20 · one way · $232.75

  • United Airlines UA2823 / UA1222: IAD 2026-11-20 12:38:00 → SJO 2026-11-20 19:53:00; 1 stop(s) via EWR; 495 minutes. Local airport times.
    • UA2823: IAD 2026-11-20 12:38:00 → EWR 2026-11-20 13:59:00; layover at EWR: 93 minutes.
    • UA1222: EWR 2026-11-20 15:32:00 → SJO 2026-11-20 19:53:00.

2026-11-20 · one way · $232.75

  • American Airlines AA2774 / AA395: IAD 2026-11-20 14:42:00 → SJO 2026-11-20 23:01:00; 1 stop(s) via DFW; 559 minutes. Local airport times.
    • AA2774: IAD 2026-11-20 14:42:00 → DFW 2026-11-20 17:28:00; layover at DFW: 87 minutes.
    • AA395: DFW 2026-11-20 18:55:00 → SJO 2026-11-20 23:01:00.

2026-11-20 · one way · $232.75

  • American Airlines AA552 / AA310: IAD 2026-11-20 06:01:00 → SJO 2026-11-20 14:35:00; 1 stop(s) via MIA; 574 minutes. Local airport times.
    • AA552: IAD 2026-11-20 06:01:00 → MIA 2026-11-20 08:50:00; layover at MIA: 218 minutes.
    • AA310: MIA 2026-11-20 12:28:00 → SJO 2026-11-20 14:35:00.

2026-11-27 → 2026-12-04 · $326.35

  • Frontier Airlines F94707 / F9215: IAD 2026-11-27 07:40:00 → SJO 2026-11-27 14:16:00; 1 stop(s) via ATL; 456 minutes. Local airport times.
    • F94707: IAD 2026-11-27 07:40:00 → ATL 2026-11-27 09:54:00; layover at ATL: 80 minutes.
    • F9215: ATL 2026-11-27 11:14:00 → SJO 2026-11-27 14:16:00.
  • Frontier Airlines F9214 / F94708: SJO 2026-12-04 15:31:00 → IAD 2026-12-05 00:51:00; 1 stop(s) via ATL; 500 minutes. Local airport times.
    • F9214: SJO 2026-12-04 15:31:00 → ATL 2026-12-04 20:44:00; layover at ATL: 135 minutes.
    • F94708: ATL 2026-12-04 22:59:00 → IAD 2026-12-05 00:51:00.

2026-11-27 → 2026-12-04 · $406.60

  • Avianca AV591 / AV609: IAD 2026-11-27 03:00:00 → SJO 2026-11-27 11:25:00; 1 stop(s) via SAL; 565 minutes. Local airport times.
    • AV591: IAD 2026-11-27 03:00:00 → SAL 2026-11-27 06:30:00; layover at SAL: 220 minutes.
    • AV609: SAL 2026-11-27 10:10:00 → SJO 2026-11-27 11:25:00.
  • Avianca AV604 / UA2435: SJO 2026-12-04 07:00:00 → IAD 2026-12-04 16:10:00; 1 stop(s) via MIA; 490 minutes. Local airport times.
    • AV604: SJO 2026-12-04 07:00:00 → MIA 2026-12-04 10:50:00; layover at MIA: 160 minutes.
    • UA2435: MIA 2026-12-04 13:30:00 → IAD 2026-12-04 16:10:00.

2026-11-20 → 2026-11-23 · $512.05

  • American Airlines AA2774 / AA395: IAD 2026-11-20 14:42:00 → SJO 2026-11-20 23:01:00; 1 stop(s) via DFW; 559 minutes. Local airport times.
    • AA2774: IAD 2026-11-20 14:42:00 → DFW 2026-11-20 17:28:00; layover at DFW: 87 minutes.
    • AA395: DFW 2026-11-20 18:55:00 → SJO 2026-11-20 23:01:00.
  • American Airlines AA358 / AA551: SJO 2026-11-23 14:02:00 → IAD 2026-11-23 23:21:00; 1 stop(s) via MIA; 499 minutes. Local airport times.
    • AA358: SJO 2026-11-23 14:02:00 → MIA 2026-11-23 18:05:00; layover at MIA: 145 minutes.
    • AA551: MIA 2026-11-23 20:30:00 → IAD 2026-11-23 23:21:00.

2026-11-20 → 2026-11-23 · $512.05

  • American Airlines AA5649 / AA345: IAD 2026-11-20 06:00:00 → SJO 2026-11-20 12:42:00; 1 stop(s) via CLT; 462 minutes. Local airport times.
    • AA5649: IAD 2026-11-20 06:00:00 → CLT 2026-11-20 07:48:00; layover at CLT: 85 minutes.
    • AA345: CLT 2026-11-20 09:13:00 → SJO 2026-11-20 12:42:00.
  • American Airlines AA358 / AA551: SJO 2026-11-23 14:02:00 → IAD 2026-11-23 23:21:00; 1 stop(s) via MIA; 499 minutes. Local airport times.
    • AA358: SJO 2026-11-23 14:02:00 → MIA 2026-11-23 18:05:00; layover at MIA: 145 minutes.
    • AA551: MIA 2026-11-23 20:30:00 → IAD 2026-11-23 23:21:00.

2026-11-27 → 2026-12-04 · $524.30

  • American Airlines AA552 / AA310: IAD 2026-11-27 06:01:00 → SJO 2026-11-27 14:35:00; 1 stop(s) via MIA; 574 minutes. Local airport times.
    • AA552: IAD 2026-11-27 06:01:00 → MIA 2026-11-27 08:50:00; layover at MIA: 218 minutes.
    • AA310: MIA 2026-11-27 12:28:00 → SJO 2026-11-27 14:35:00.
  • American Airlines AA358 / AA551: SJO 2026-12-04 14:02:00 → IAD 2026-12-04 23:21:00; 1 stop(s) via MIA; 499 minutes. Local airport times.
    • AA358: SJO 2026-12-04 14:02:00 → MIA 2026-12-04 18:05:00; layover at MIA: 145 minutes.
    • AA551: MIA 2026-12-04 20:30:00 → IAD 2026-12-04 23:21:00.

2026-11-27 → 2026-12-04 · $524.30

  • American Airlines AA2774 / AA395: IAD 2026-11-27 14:42:00 → SJO 2026-11-27 23:01:00; 1 stop(s) via DFW; 559 minutes. Local airport times.
    • AA2774: IAD 2026-11-27 14:42:00 → DFW 2026-11-27 17:28:00; layover at DFW: 87 minutes.
    • AA395: DFW 2026-11-27 18:55:00 → SJO 2026-11-27 23:01:00.
  • American Airlines AA358 / AA551: SJO 2026-12-04 14:02:00 → IAD 2026-12-04 23:21:00; 1 stop(s) via MIA; 499 minutes. Local airport times.
    • AA358: SJO 2026-12-04 14:02:00 → MIA 2026-12-04 18:05:00; layover at MIA: 145 minutes.
    • AA551: MIA 2026-12-04 20:30:00 → IAD 2026-12-04 23:21:00.

2026-11-27 → 2026-12-04 · $524.30

  • American Airlines AA5649 / AA345: IAD 2026-11-27 06:00:00 → SJO 2026-11-27 12:42:00; 1 stop(s) via CLT; 462 minutes. Local airport times.
    • AA5649: IAD 2026-11-27 06:00:00 → CLT 2026-11-27 07:48:00; layover at CLT: 85 minutes.
    • AA345: CLT 2026-11-27 09:13:00 → SJO 2026-11-27 12:42:00.
  • American Airlines AA358 / AA551: SJO 2026-12-04 14:02:00 → IAD 2026-12-04 23:21:00; 1 stop(s) via MIA; 499 minutes. Local airport times.
    • AA358: SJO 2026-12-04 14:02:00 → MIA 2026-12-04 18:05:00; layover at MIA: 145 minutes.
    • AA551: MIA 2026-12-04 20:30:00 → IAD 2026-12-04 23:21:00.

2026-11-20 → 2026-11-23 · $546.73

  • United Airlines UA2823 / UA1222: IAD 2026-11-20 12:38:00 → SJO 2026-11-20 19:53:00; 1 stop(s) via EWR; 495 minutes. Local airport times.
    • UA2823: IAD 2026-11-20 12:38:00 → EWR 2026-11-20 13:59:00; layover at EWR: 93 minutes.
    • UA1222: EWR 2026-11-20 15:32:00 → SJO 2026-11-20 19:53:00.
  • United Airlines UA2073: SJO 2026-11-23 14:15:00 → IAD 2026-11-23 19:59:00; nonstop; 284 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $553.95

  • United Airlines UA2823 / UA1222: IAD 2026-11-27 12:38:00 → SJO 2026-11-27 19:53:00; 1 stop(s) via EWR; 495 minutes. Local airport times.
    • UA2823: IAD 2026-11-27 12:38:00 → EWR 2026-11-27 13:59:00; layover at EWR: 93 minutes.
    • UA1222: EWR 2026-11-27 15:32:00 → SJO 2026-11-27 19:53:00.
  • United Airlines UA2073: SJO 2026-12-04 14:15:00 → IAD 2026-12-04 19:59:00; nonstop; 284 minutes. Local airport times.

More dates for this route