Flights Houston → Seattle
As of October 2026, economy flights from Houston to Seattle have a typical range USD 527–1925, median USD 621. Full range across all 32 offers: USD 503–2256. We analyzed 32 offers from 4 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: Houston → Seattle
Based on 32 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Houston → Seattle
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| United | — | USD 95 | — |
| Alaska Airlines | 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 Houston to Seattle cost?
Based on 32 offers · October 2026
Houston to Seattle flights ranged from USD 503 to USD 2256 across 32 offers analyzed in October 2026. The chart below shows how prices distributed across all 32 offers.
What hidden fees do Houston to Seattle flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Houston to Seattle routes. The breakdown below is based on 32 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| United | 95 | 17% |
| AS | 10 | 1% |
| Alaska | 90 | 17% |
| UA | 30 | 2% |
United: base ~USD 446 + fees USD 95 = ~USD 541 total. Alaska Airlines: base ~USD 842 + fees USD 10 = ~USD 852 total.
United's USD 95 ancillary fees narrow the gap with Alaska Airlines's lower-fee model — the USD 396 base difference shrinks to USD 311 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 Houston to Seattle?
4 airlines flew Houston 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) |
|---|---|---|---|---|
 Alaska | 2 | — | 527 | 90 (17%) |
 United | 6 | 521–592 | 541 | 95 (18%) |
 Alaska Airlines | 6 | 503–877 | 852 | 10 (1%) |
 United Airlines | 18 | 588–2241 | 1269 | 30 (2%) |
Where do the best Houston → Seattle 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: Houston to Seattle flights
- Houston–Seattle had 32 offers analyzed. Median price: USD 621.
- United charges 9.5x more in ancillary fees than AS — USD 95 vs USD 10 avg per booking.
- The same route priced USD 1346 apart depending on where it was booked — the lowest median was USD 531. 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 Houston to Seattle cost?
- Based on 32 offers analyzed, Houston to Seattle flights range from USD 503 to USD 2256, with a median price of USD 621. Search for your specific dates →
- What hidden fees should I expect on Houston to Seattle flights?
- On average, ancillary fees (bags, seat selection) add USD 42 to the base fare on Houston to Seattle flights. See itemized fees for your itinerary →
- Which airline is cheapest on Houston to Seattle including all fees?
- Alaska has the lowest median fare on Houston to Seattle at USD 527 (median across 2 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Houston–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 531. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Houston to Seattle routes?
- Houston to Seattle has 4 airlines competing, creating a price range from USD 503 to USD 2256 across 32 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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