Flights Seattle → Hilo
As of October 2026, economy flights from Seattle to Hilo have a typical range USD 554–1041, median USD 816. Full range across all 133 offers: USD 449–1329. We found 74% of 133 offers from budget carriers (around USD 803) and 26% from full-service carriers (around USD 875).
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: Seattle → Hilo
Based on 133 offers · October 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Seattle → Hilo
Add-on pricing from the cheapest available offer per airline · October 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Alaska Airlines | — | USD 35 | — |
| Southwest Airlines | Included | Included | — |
| Alaska Airlines | Included | — | — |
| American Airlines | — | USD 35 | — |
| United Airlines | — | 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 Seattle to Hilo cost?
Based on 133 offers · October 2026
Seattle to Hilo flights ranged from USD 449 to USD 1329 across 133 offers analyzed in October 2026. Two fare clusters detected: budget fares around 581 and premium fares around 845 The chart below shows how prices distributed across all 133 offers.
These 133 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 596 and USD 928
What hidden fees do Seattle to Hilo flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Seattle to Hilo routes. The breakdown below is based on 133 offers analyzed in October 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| AS | 45 | 6% |
| WN | 0 | 0% |
| ASHA | 0 | 0% |
| AA | 45 | 5% |
| UA | 45 | 4% |
Alaska Airlines: base ~USD 758 + fees USD 45 = ~USD 803 total. American Airlines: base ~USD 904 + fees USD 45 = ~USD 949 total.
Total costs diverge further when fees are added on this route. 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.AS charges 1.0x more in ancillary fees than UA on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Seattle to Hilo?
5 airlines flew Seattle to Hilo in this dataset. The route shows a clear split between low-cost and full-service carriers. 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 (Alaska Airlines), fares ranged USD 554–1000 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) |
|---|---|---|---|---|
 Alaska Airlines | 99 | 554–1000 | 803 | 45 (6%) |
 ASHA | 9 | 692–903 | 875 | 0 (0%) |
 American Airlines | 6 | 824–1045 | 949 | 45 (5%) |
 United Airlines | 5 | 959–1301 | 1028 | 45 (4%) |
 Southwest Airlines | 14 | 545–1123 | 1040 | 0 (0%) |
Where do the best Seattle → Hilo 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: Seattle to Hilo flights
- Full-service carriers on Seattle–Hilo cost 0.9x more than budget airlines (USD 914 vs USD 1040 median; overall median USD 816).
- AS charges 1.0x more in ancillary fees than UA — USD 45 vs USD 45 avg per booking.
- The same route priced USD 311 apart depending on where it was booked — the lowest median was USD 564. 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 Seattle to Hilo cost?
- Based on 133 offers analyzed, Seattle to Hilo flights range from USD 449 to USD 1329, with a median price of USD 816. Search for your specific dates →
- What hidden fees should I expect on Seattle to Hilo flights?
- On average, ancillary fees (bags, seat selection) add USD 40 to the base fare on Seattle to Hilo flights. See itemized fees for your itinerary →
- Which airline is cheapest on Seattle to Hilo including all fees?
- Alaska Airlines has the lowest median fare on Seattle to Hilo at USD 803 (median across 99 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Seattle–Hilo 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 564. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Seattle to Hilo routes?
- Seattle to Hilo has 5 airlines competing, creating a price range from USD 449 to USD 1329 across 133 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
5 airlines, two price clusters — find which fits your budget
Find flights for my datesNew route — be among the first to track this itinerary
Building with flight data? Power your app or agent with LetsFG
The same multi-source search behind this page — every airline and the major booking sites, deduplicated and ranked — is available to your app or AI agent. Natural-language or structured queries, live prices, zero price bias.
Try the free sandbox — no card →Free sandbox, instant fake results · email for a key · Bearer-token auth · MCP, Python & JS SDKs · letsfg.co/developers