Flights Dallas-Fort Worth → Seattle
As of October 2026, economy flights from Dallas-Fort Worth to Seattle have a typical range USD 291–1491, median USD 403. Full range across all 125 offers: USD 179–6632. We analyzed 125 offers from 7 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: Dallas-Fort Worth → Seattle
Based on 125 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Dallas-Fort Worth → Seattle
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier | — | — | — |
| Delta | Included | USD 35 | — |
| American Airlines | Included | USD 35 | — |
| Alaska Airlines | — | USD 35 | — |
| United | Included | USD 35 | — |
| American | — | USD 45 | — |
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 Dallas-Fort Worth to Seattle cost?
Based on 125 offers · October 2026
Dallas-Fort Worth to Seattle flights ranged from USD 179 to USD 6632 across 125 offers analyzed in October 2026. The chart below shows how prices distributed across all 125 offers.
These 125 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 300 and USD 548
What hidden fees do Dallas-Fort Worth to Seattle flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Dallas-Fort Worth to Seattle routes. The breakdown below is based on 125 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 10 | 3% |
| DL | 34 | 9% |
| AA | 45 | 8% |
| AS | 45 | 4% |
| UA | 45 | 6% |
| American | 45 | 1% |
United Airlines: base ~USD 289 + fees USD 45 = ~USD 334 total. Frontier Airlines: base ~USD 324 + fees USD 10 = ~USD 334 total.
United Airlines's USD 45 ancillary fees narrow the gap with Frontier Airlines's lower-fee model — the USD 35 base difference shrinks to USD 0 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.AA charges 4.5x 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 Dallas-Fort Worth to Seattle?
7 airlines flew Dallas-Fort Worth to Seattle 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 | 1 | — | 186 | n/a |
 Frontier Airlines | 3 | 210–524 | 334 | 10 (3%) |
 United Airlines | 34 | 300–1350 | 334 | 45 (13%) |
 Delta Air Lines | 29 | 300–469 | 401 | 34 (9%) |
 Alaska Airlines | 22 | 291–3274 | 451 | 45 (10%) |
 American Airlines | 32 | 290–1381 | 471 | 45 (10%) |
 American | 4 | 6198–6202 | 6198 | 45 (1%) |
Where do the best Dallas-Fort Worth → Seattle 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: Dallas-Fort Worth to Seattle flights
- Full-service carriers on Dallas-Fort Worth–Seattle cost 6.0x more than budget airlines (USD 1571 vs USD 260 median; overall median USD 403).
- AA charges 4.5x more in ancillary fees than F9 — USD 45 vs USD 10 avg per booking.
- The same route priced USD 5898 apart depending on where it was booked — the lowest median was USD 300. 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 Dallas-Fort Worth to Seattle cost?
- Based on 125 offers analyzed, Dallas-Fort Worth to Seattle flights range from USD 179 to USD 6632, with a median price of USD 403. Search for your specific dates →
- What hidden fees should I expect on Dallas-Fort Worth to Seattle flights?
- On average, ancillary fees (bags, seat selection) add USD 42 to the base fare on Dallas-Fort Worth to Seattle flights. See itemized fees for your itinerary →
- Which airline is cheapest on Dallas-Fort Worth to Seattle including all fees?
- Frontier has the lowest median fare on Dallas-Fort Worth to Seattle at USD 186 (median across 1 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Dallas-Fort Worth–Seattle 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 300. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Dallas-Fort Worth to Seattle routes?
- Dallas-Fort Worth to Seattle has 7 airlines competing, creating a price range from USD 179 to USD 6632 across 125 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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