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Route overview: Washington, DC to San Jose (SJO) flight deals

Dulles → San Jose

Jan 21, 2027 · return Jan 28, 2027

IAD → SJO1 adulteconomyRound trip

7 flight options · 4 airlines

Nonstop flights

Thu, Jan 21 – Thu, Jan 28

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

One-stop flights

Thu, Jan 21 – Thu, Jan 28

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

Thu, Jan 21 – Thu, Jan 28

Avianca
3:00 amIAD
9h 25m
SAL · 3h 40m
11:25 amSJO
Avianca
4:15 pmSJO
7h 50m
GUA · 2h 10m
1:05 am+1IAD

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Jan 28

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

Thu, Jan 21 – Thu, Jan 28

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

Thu, Jan 21 – Thu, Jan 28

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

Thu, Jan 21 – Thu, Jan 28

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

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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Explore this route

All dates for this routeJan 20, 2027 → Jan 27, 2027Jan 22, 2027 → Jan 29, 2027
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: Washington, DC to San Jose (SJO) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-01-21 → 2027-01-28United AirlinesUA2052 / UA2073$555.002026-10-29T01:07:59Z
2027-01-21 → 2027-01-28Frontier AirlinesF94707 + F9215 / F9214 + F94708$305.002026-10-29T01:07:59Z
2027-01-21 → 2027-01-28AviancaAV591 + AV609 / AV654 + AV644$380.002026-10-29T01:07:59Z
2027-01-21 → 2027-01-28American AirlinesAA2774 + AA395 / AA358 + AA551$490.002026-10-29T01:07:59Z
2027-01-21 → 2027-01-28American AirlinesAA552 + AA310 / AA358 + AA551$490.002026-10-29T01:07:59Z
2027-01-21 → 2027-01-28American AirlinesAA5649 + AA345 / AA358 + AA551$490.002026-10-29T01:07:59Z
2027-01-21 → 2027-01-28United AirlinesUA2823 + UA1222 / UA2073$520.002026-10-29T01:07:59Z

2027-01-21 → 2027-01-28 · $555.00

  • United Airlines UA2052: IAD 2027-01-21 08:59:00 → SJO 2027-01-21 13:00:00; nonstop; 301 minutes. Local airport times.
  • United Airlines UA2073: SJO 2027-01-28 14:15:00 → IAD 2027-01-28 19:59:00; nonstop; 284 minutes. Local airport times.

2027-01-21 → 2027-01-28 · $305.00

  • Frontier Airlines F94707 / F9215: IAD 2027-01-21 07:40:00 → SJO 2027-01-21 14:16:00; 1 stop(s) via ATL; 456 minutes. Local airport times.
    • F94707: IAD 2027-01-21 07:40:00 → ATL 2027-01-21 09:54:00; layover at ATL: 80 minutes.
    • F9215: ATL 2027-01-21 11:14:00 → SJO 2027-01-21 14:16:00.
  • Frontier Airlines F9214 / F94708: SJO 2027-01-28 15:31:00 → IAD 2027-01-29 00:51:00; 1 stop(s) via ATL; 500 minutes. Local airport times.
    • F9214: SJO 2027-01-28 15:31:00 → ATL 2027-01-28 20:44:00; layover at ATL: 135 minutes.
    • F94708: ATL 2027-01-28 22:59:00 → IAD 2027-01-29 00:51:00.

2027-01-21 → 2027-01-28 · $380.00

  • Avianca AV591 / AV609: IAD 2027-01-21 03:00:00 → SJO 2027-01-21 11:25:00; 1 stop(s) via SAL; 565 minutes. Local airport times.
    • AV591: IAD 2027-01-21 03:00:00 → SAL 2027-01-21 06:30:00; layover at SAL: 220 minutes.
    • AV609: SAL 2027-01-21 10:10:00 → SJO 2027-01-21 11:25:00.
  • Avianca AV654 / AV644: SJO 2027-01-28 16:15:00 → IAD 2027-01-29 01:05:00; 1 stop(s) via GUA; 470 minutes. Local airport times.
    • AV654: SJO 2027-01-28 16:15:00 → GUA 2027-01-28 17:50:00; layover at GUA: 130 minutes.
    • AV644: GUA 2027-01-28 20:00:00 → IAD 2027-01-29 01:05:00.

2027-01-21 → 2027-01-28 · $490.00

  • American Airlines AA2774 / AA395: IAD 2027-01-21 14:42:00 → SJO 2027-01-21 23:01:00; 1 stop(s) via DFW; 559 minutes. Local airport times.
    • AA2774: IAD 2027-01-21 14:42:00 → DFW 2027-01-21 17:28:00; layover at DFW: 87 minutes.
    • AA395: DFW 2027-01-21 18:55:00 → SJO 2027-01-21 23:01:00.
  • American Airlines AA358 / AA551: SJO 2027-01-28 14:02:00 → IAD 2027-01-28 23:21:00; 1 stop(s) via MIA; 499 minutes. Local airport times.
    • AA358: SJO 2027-01-28 14:02:00 → MIA 2027-01-28 18:05:00; layover at MIA: 145 minutes.
    • AA551: MIA 2027-01-28 20:30:00 → IAD 2027-01-28 23:21:00.

2027-01-21 → 2027-01-28 · $490.00

  • American Airlines AA552 / AA310: IAD 2027-01-21 06:01:00 → SJO 2027-01-21 14:35:00; 1 stop(s) via MIA; 574 minutes. Local airport times.
    • AA552: IAD 2027-01-21 06:01:00 → MIA 2027-01-21 08:50:00; layover at MIA: 218 minutes.
    • AA310: MIA 2027-01-21 12:28:00 → SJO 2027-01-21 14:35:00.
  • American Airlines AA358 / AA551: SJO 2027-01-28 14:02:00 → IAD 2027-01-28 23:21:00; 1 stop(s) via MIA; 499 minutes. Local airport times.
    • AA358: SJO 2027-01-28 14:02:00 → MIA 2027-01-28 18:05:00; layover at MIA: 145 minutes.
    • AA551: MIA 2027-01-28 20:30:00 → IAD 2027-01-28 23:21:00.

2027-01-21 → 2027-01-28 · $490.00

  • American Airlines AA5649 / AA345: IAD 2027-01-21 06:00:00 → SJO 2027-01-21 12:42:00; 1 stop(s) via CLT; 462 minutes. Local airport times.
    • AA5649: IAD 2027-01-21 06:00:00 → CLT 2027-01-21 07:48:00; layover at CLT: 85 minutes.
    • AA345: CLT 2027-01-21 09:13:00 → SJO 2027-01-21 12:42:00.
  • American Airlines AA358 / AA551: SJO 2027-01-28 14:02:00 → IAD 2027-01-28 23:21:00; 1 stop(s) via MIA; 499 minutes. Local airport times.
    • AA358: SJO 2027-01-28 14:02:00 → MIA 2027-01-28 18:05:00; layover at MIA: 145 minutes.
    • AA551: MIA 2027-01-28 20:30:00 → IAD 2027-01-28 23:21:00.

2027-01-21 → 2027-01-28 · $520.00

  • United Airlines UA2823 / UA1222: IAD 2027-01-21 12:38:00 → SJO 2027-01-21 19:53:00; 1 stop(s) via EWR; 495 minutes. Local airport times.
    • UA2823: IAD 2027-01-21 12:38:00 → EWR 2027-01-21 13:59:00; layover at EWR: 93 minutes.
    • UA1222: EWR 2027-01-21 15:32:00 → SJO 2027-01-21 19:53:00.
  • United Airlines UA2073: SJO 2027-01-28 14:15:00 → IAD 2027-01-28 19:59:00; nonstop; 284 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Dulles (IAD) to San Jose (SJO) · Jan 21, 2027 · return Jan 28, 2027: 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.
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  • 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 Washington, DC to San Jose (SJO) 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.