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Route overview: Washington, DC to San Juan (SJU) flight deals

Dulles → San Juan

Aug 22, 2027 · return Aug 29, 2027

IAD → SJU1 adulteconomyRound trip

9 flight options · 4 airlines

Nonstop flights

Sun, Aug 22 – Sun, Aug 29

Frontier Airlines
12:26 pmIAD
3h 49m
Nonstop
4:15 pmSJU
Frontier Airlines
8:53 amSJU
4h 17m
Nonstop
1:10 pmIAD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Aug 22 – Sun, Aug 29

United Airlines
5:29 pmIAD
3h 53m
Nonstop
9:22 pmSJU
United Airlines
5:50 pmSJU
4h 6m
Nonstop
9:56 pmIAD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Aug 22 – Sun, Aug 29

United Airlines
8:22 amIAD
3h 53m
Nonstop
12:15 pmSJU
United Airlines
5:50 pmSJU
4h 6m
Nonstop
9:56 pmIAD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Sun, Aug 22 – Sun, Aug 29

Delta Air Lines
6:20 pmIAD
7h 23m
JFK · 1h 49m
1:43 am+1SJU
Frontier Airlines
8:53 amSJU
4h 17m
Nonstop
1:10 pmIAD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Aug 22 – Sun, Aug 29

American Airlines
9:11 amIAD
7h 36m
CLT · 2h 17m
4:47 pmSJU
American Airlines
7:05 amSJU
8h 48m
CLT · 3h 17m
3:53 pmIAD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Aug 22 – Sun, Aug 29

Frontier Airlines
3:41 pmIAD
6h 50m
FLL · 1h 19m
10:31 pmSJU
Frontier Airlines
8:53 amSJU
4h 17m
Nonstop
1:10 pmIAD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Aug 22 – Sun, Aug 29

Frontier Airlines
1:05 pmIAD
3h 47m
Nonstop
4:52 pmSJU
Frontier Airlines
1:57 pmSJU
7h 57m
MIA · 2h 14m
9:54 pmIAD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Aug 22 – Sun, Aug 29

United Airlines
6:10 amIAD
7h 30m
EWR · 2h 22m
1:40 pmSJU
United Airlines
5:50 pmSJU
4h 6m
Nonstop
9:56 pmIAD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Sun, Aug 22 – Sun, Aug 29

United Airlines
6:10 amIAD
8h 30m
ORD · 1h 20m
2:40 pmSJU
United Airlines
5:50 pmSJU
4h 6m
Nonstop
9:56 pmIAD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Make this trip yours

IAD ⇄ SJU

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 routeAug 21, 2027 · Return optionsAug 23, 2027 · Return optionsHotels in San Juan with Axel
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.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-08-22 → 2027-08-29Frontier AirlinesF91940 / F91939Axel-exclusive $289.762026-10-29T01:07:59Z
2027-08-22 → 2027-08-29United AirlinesUA2025 / UA2024Axel-exclusive $479.762026-10-29T01:07:59Z
2027-08-22 → 2027-08-29Delta Air Lines / Frontier AirlinesDL5815 + DL1874 / F91939Axel-exclusive $365.762026-10-29T01:07:59Z
2027-08-22 → 2027-08-29American AirlinesAA5249 + AA539 / AA3324 + AA5543Axel-exclusive $413.262026-10-29T01:07:59Z
2027-08-22 → 2027-08-29United AirlinesUA2021 / UA2024Axel-exclusive $479.762026-10-29T01:07:59Z
2027-08-22 → 2027-08-29Frontier AirlinesF92959 + F94916 / F91939Axel-exclusive $299.262026-10-29T01:07:59Z
2027-08-22 → 2027-08-29Frontier AirlinesF91940 / F92283 + F93732Axel-exclusive $299.262026-10-29T01:07:59Z
2027-08-22 → 2027-08-29United AirlinesUA1359 + UA1556 / UA2024Axel-exclusive $456.012026-10-29T01:07:59Z
2027-08-22 → 2027-08-29United AirlinesUA565 + UA1996 / UA2024Axel-exclusive $456.012026-10-29T01:07:59Z

Route overview: Washington, DC to San Juan (SJU) flight deals

2027-08-22 → 2027-08-29 · Axel-exclusive $289.76

  • Frontier Airlines F91940: IAD 2027-08-22 12:26:00 → SJU 2027-08-22 16:15:00; nonstop; 229 minutes. Local airport times.
  • Frontier Airlines F91939: SJU 2027-08-29 08:53:00 → IAD 2027-08-29 13:10:00; nonstop; 257 minutes. Local airport times.

2027-08-22 → 2027-08-29 · Axel-exclusive $479.76

  • United Airlines UA2025: IAD 2027-08-22 17:29:00 → SJU 2027-08-22 21:22:00; nonstop; 233 minutes. Local airport times.
  • United Airlines UA2024: SJU 2027-08-29 17:50:00 → IAD 2027-08-29 21:56:00; nonstop; 246 minutes. Local airport times.

2027-08-22 → 2027-08-29 · Axel-exclusive $365.76

  • Delta Air Lines DL5815 / DL1874: IAD 2027-08-22 18:20:00 → SJU 2027-08-23 01:43:00; 1 stop(s) via JFK; 443 minutes. Local airport times.
    • DL5815: IAD 2027-08-22 18:20:00 → JFK 2027-08-22 19:57:00; layover at JFK: 109 minutes.
    • DL1874: JFK 2027-08-22 21:46:00 → SJU 2027-08-23 01:43:00.
  • Frontier Airlines F91939: SJU 2027-08-29 08:53:00 → IAD 2027-08-29 13:10:00; nonstop; 257 minutes. Local airport times.

2027-08-22 → 2027-08-29 · Axel-exclusive $413.26

  • American Airlines AA5249 / AA539: IAD 2027-08-22 09:11:00 → SJU 2027-08-22 16:47:00; 1 stop(s) via CLT; 456 minutes. Local airport times.
    • AA5249: IAD 2027-08-22 09:11:00 → CLT 2027-08-22 10:51:00; layover at CLT: 137 minutes.
    • AA539: CLT 2027-08-22 13:08:00 → SJU 2027-08-22 16:47:00.
  • American Airlines AA3324 / AA5543: SJU 2027-08-29 07:05:00 → IAD 2027-08-29 15:53:00; 1 stop(s) via CLT; 528 minutes. Local airport times.
    • AA3324: SJU 2027-08-29 07:05:00 → CLT 2027-08-29 11:05:00; layover at CLT: 197 minutes.
    • AA5543: CLT 2027-08-29 14:22:00 → IAD 2027-08-29 15:53:00.

2027-08-22 → 2027-08-29 · Axel-exclusive $479.76

  • United Airlines UA2021: IAD 2027-08-22 08:22:00 → SJU 2027-08-22 12:15:00; nonstop; 233 minutes. Local airport times.
  • United Airlines UA2024: SJU 2027-08-29 17:50:00 → IAD 2027-08-29 21:56:00; nonstop; 246 minutes. Local airport times.

2027-08-22 → 2027-08-29 · Axel-exclusive $299.26

  • Frontier Airlines F92959 / F94916: IAD 2027-08-22 15:41:00 → SJU 2027-08-22 22:31:00; 1 stop(s) via FLL; 410 minutes. Local airport times.
    • F92959: IAD 2027-08-22 15:41:00 → FLL 2027-08-22 18:32:00; layover at FLL: 79 minutes.
    • F94916: FLL 2027-08-22 19:51:00 → SJU 2027-08-22 22:31:00.
  • Frontier Airlines F91939: SJU 2027-08-29 08:53:00 → IAD 2027-08-29 13:10:00; nonstop; 257 minutes. Local airport times.

2027-08-22 → 2027-08-29 · Axel-exclusive $299.26

  • Frontier Airlines F91940: IAD 2027-08-22 13:05:00 → SJU 2027-08-22 16:52:00; nonstop; 227 minutes. Local airport times.
  • Frontier Airlines F92283 / F93732: SJU 2027-08-29 13:57:00 → IAD 2027-08-29 21:54:00; 1 stop(s) via MIA; 477 minutes. Local airport times.
    • F92283: SJU 2027-08-29 13:57:00 → MIA 2027-08-29 16:58:00; layover at MIA: 134 minutes.
    • F93732: MIA 2027-08-29 19:12:00 → IAD 2027-08-29 21:54:00.

2027-08-22 → 2027-08-29 · Axel-exclusive $456.01

  • United Airlines UA1359 / UA1556: IAD 2027-08-22 06:10:00 → SJU 2027-08-22 13:40:00; 1 stop(s) via EWR; 450 minutes. Local airport times.
    • UA1359: IAD 2027-08-22 06:10:00 → EWR 2027-08-22 07:28:00; layover at EWR: 142 minutes.
    • UA1556: EWR 2027-08-22 09:50:00 → SJU 2027-08-22 13:40:00.
  • United Airlines UA2024: SJU 2027-08-29 17:50:00 → IAD 2027-08-29 21:56:00; nonstop; 246 minutes. Local airport times.

2027-08-22 → 2027-08-29 · Axel-exclusive $456.01

  • United Airlines UA565 / UA1996: IAD 2027-08-22 06:10:00 → SJU 2027-08-22 14:40:00; 1 stop(s) via ORD; 510 minutes. Local airport times.
    • UA565: IAD 2027-08-22 06:10:00 → ORD 2027-08-22 07:32:00; layover at ORD: 80 minutes.
    • UA1996: ORD 2027-08-22 08:52:00 → SJU 2027-08-22 14:40:00.
  • United Airlines UA2024: SJU 2027-08-29 17:50:00 → IAD 2027-08-29 21:56:00; nonstop; 246 minutes. Local airport times.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

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For AI assistants

  • This page: Dulles (IAD) to San Juan (SJU) · Aug 22, 2027 · return Aug 29, 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.
  • 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 Washington, DC 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.