Flights San Francisco → Washington
As of November 2026, economy flights from San Francisco to Washington have a typical range USD 414–936, median USD 527. Full range across all 556 offers: USD 338–1480. We analyzed 556 offers from 9 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: San Francisco → Washington
Based on 556 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: San Francisco → Washington
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier Airlines | — | — | — |
| jetBlue | Included | USD 35 | — |
| Alaska Airlines | Included | USD 35 | — |
| American Airlines | Included | USD 35 | — |
| Delta | Included | USD 35 | — |
| Southwest Airlines | Included | Included | — |
| Alaska | — | USD 90 | — |
| United | Included | USD 35 | — |
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 San Francisco to Washington cost?
Based on 556 offers · November 2026
San Francisco to Washington flights ranged from USD 338 to USD 1480 across 556 offers analyzed in November 2026. The chart below shows how prices distributed across all 556 offers.
These 556 offers (November 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 442 and USD 782
What hidden fees do San Francisco to Washington flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on San Francisco to Washington routes. The breakdown below is based on 556 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 10 | 2% |
| B6 | 45 | 12% |
| AS | 28 | 6% |
| AA | 45 | 10% |
| DL | 45 | 7% |
| WN | 0 | 0% |
| Alaska | 90 | 17% |
| UA | 45 | 5% |
Alaska: base ~USD 424 + fees USD 90 = ~USD 514 total. Delta Air Lines: base ~USD 527 + fees USD 45 = ~USD 572 total.
Alaska's USD 90 ancillary fees narrow the gap with Delta Air Lines's lower-fee model — the USD 103 base difference shrinks to USD 58 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.Alaska charges 9.0x more in ancillary fees than F9 on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from San Francisco to Washington?
9 airlines flew San Francisco to Washington 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.
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Frontier | 32 | — | 338 | n/a |
 B6 | 10 | 380–396 | 381 | 45 (12%) |
 Frontier Airlines | 16 | 343–487 | 424 | 10 (2%) |
 American Airlines | 152 | 442–529 | 442 | 45 (10%) |
 Alaska Airlines | 40 | 408–528 | 453 | 28 (6%) |
 Alaska | 4 | 490–550 | 514 | 90 (18%) |
 Southwest Airlines | 70 | 476–626 | 539 | 0 (0%) |
 Delta Air Lines | 130 | 504–854 | 572 | 45 (8%) |
 United Airlines | 102 | 798–1121 | 1063 | 45 (4%) |
Where do the best San Francisco → Washington prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency 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: San Francisco to Washington flights
- Full-service carriers on San Francisco–Washington cost 1.4x more than budget airlines (USD 609 vs USD 420 median; overall median USD 527).
- Alaska charges 9.0x more in ancillary fees than F9 — USD 90 vs USD 10 avg per booking.
- The same route priced USD 198 apart depending on where it was booked — the lowest median was USD 338. 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 San Francisco to Washington cost?
- Based on 556 offers analyzed, San Francisco to Washington flights range from USD 338 to USD 1480, with a median price of USD 527. Search for your specific dates →
- What hidden fees should I expect on San Francisco to Washington flights?
- On average, ancillary fees (bags, seat selection) add USD 37 to the base fare on San Francisco to Washington flights. See itemized fees for your itinerary →
- Which airline is cheapest on San Francisco to Washington including all fees?
- Frontier has the lowest median fare on San Francisco to Washington at USD 338 (median across 32 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest San Francisco–Washington 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 338. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on San Francisco to Washington routes?
- San Francisco to Washington has 9 airlines competing, creating a price range from USD 338 to USD 1480 across 556 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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