Flights Washington DC → San Juan
As of October 2026, economy flights from Washington DC to San Juan have a typical range USD 568–1198, median USD 997. Full range across all 220 offers: USD 484–1667. We analyzed 220 offers from 11 airlines in a single price check.
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Washington DC → San Juan
Based on 220 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Washington DC → San Juan
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier | USD 118 | USD 130 | — |
| Southwest Airlines | Included | Included | — |
| JetBlue | Included | USD 35 | — |
| JetBlue | — | USD 94 | — |
| American Airlines | Included | USD 110 | — |
| American | — | USD 110 | — |
| Delta | Included | USD 35 | — |
| United | Included | USD 35 | — |
| United | — | USD 100 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Washington DC to San Juan cost?
Based on 220 offers · October 2026
Washington DC to San Juan flights ranged from USD 484 to USD 1667 across 220 offers analyzed in October 2026. The chart below shows how prices distributed across all 220 offers.
These 220 offers (October 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 800 and USD 1095
What hidden fees do Washington DC to San Juan flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Washington DC to San Juan routes. The breakdown below is based on 220 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 211 | 31% |
| WN | 45 | 3% |
| B6 | 70 | 8% |
| JetBlue | 94 | 13% |
| AA | 52 | 5% |
| American | 110 | 14% |
| DL | 45 | 4% |
| UA | 45 | 4% |
| United | 100 | 9% |
Frontier Airlines: base ~USD 423 + fees USD 211 = ~USD 634 total. Delta Air Lines: base ~USD 1047 + fees USD 45 = ~USD 1092 total.
Frontier Airlines's USD 211 ancillary fees narrow the gap with Delta Air Lines's lower-fee model — the USD 624 base difference shrinks to USD 458 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Washington DC to San Juan?
11 airlines flew Washington DC to San Juan in this dataset. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
Even on the cheapest airline (Frontier), fares ranged USD 501–572 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Frontier | 9 | 501–572 | 561 | n/a |
 B6|F9 | 1 | — | 569 | n/a |
 Frontier Airlines | 37 | 505–904 | 634 | 211 (33%) |
 B6 | 11 | 555–1075 | 744 | 70 (9%) |
 JetBlue | 6 | — | 749 | 94 (13%) |
 American | 6 | — | 800 | 110 (14%) |
 American Airlines | 61 | 888–1178 | 976 | 52 (5%) |
 United | 2 | — | 1080 | 100 (9%) |
 Delta Air Lines | 40 | 1083–1101 | 1092 | 45 (4%) |
 United Airlines | 35 | 1032–1210 | 1145 | 45 (4%) |
 Southwest Airlines | 12 | 1256–1667 | 1487 | 45 (3%) |
Where do the best Washington DC → San Juan prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from meta-search sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Washington DC to San Juan flights
- Full-service carriers on Washington DC–San Juan cost 1.1x more than budget airlines (USD 944 vs USD 835 median; overall median USD 997).
- F9 charges 4.7x more in ancillary fees than UA — USD 211 vs USD 45 avg per booking.
- The same route priced USD 588 apart depending on where it was booked — the lowest median was USD 504. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Washington DC to San Juan cost?
- Based on 220 offers analyzed, Washington DC to San Juan flights range from USD 484 to USD 1667, with a median price of USD 997. Search for your specific dates →
- What hidden fees should I expect on Washington DC to San Juan flights?
- On average, ancillary fees (bags, seat selection) add USD 81 to the base fare on Washington DC to San Juan flights. See itemized fees for your itinerary →
- Which airline is cheapest on Washington DC to San Juan including all fees?
- Frontier has the lowest median fare on Washington DC to San Juan at USD 561 (median across 9 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Washington DC–San Juan flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 504. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Washington DC to San Juan routes?
- Washington DC to San Juan has 11 airlines competing, creating a price range from USD 484 to USD 1667 across 220 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
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