The cheapest times to fly from SEA to ITO are

  • January 1st to March 4th (except the week of February 12th)
  • August 6th to December 9th (except the week of November 19th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SEA to ITO is late August to early September. Prices can be as high as $1196 for Saturday flights during early April, or as low as $556 for Tuesday flights around late August to early September.


When to Fly to Hilo

Flying from Seattle, WA (SEA) to Hilo, HI (ITO) will usually cost between $573 to $973 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late August to early September with an average ticket price of $582. Due to high demand the most expensive time to fly is early April, with an average price of $967. Planning your trip to low-cost times can easily save you $386 on economy flights and even more on first-class flights. Generally, any price below $683 can be considered a good price for a round-trip SEA to ITO flight.

See below for a graph of average weekly prices for the SEA to ITO route. All prices are for round-trip tickets in USD.

SEA to ITO Flight Prices

Compared to other flights, the SEA to ITO flight is cheaper than the average and costs less than the average flight leaving from Seattle. The average price per mile (for a direct flight) is $0.16, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Saturdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $125 (16%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $670. Return trip prices are from the ITO to SEA flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SEA to ITO can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 5 hour 45 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from SEA to ITO while comparing.

Destination alternative #1: Kahului Airport (OGG) in Kahului, HI

  • 121 miles (195 km) away from ITO
  • Usually 24.98% less expensive than ITO
  • Nonstop flights available

See SEA to OGG flights

Destination alternative #2: Ellison Onizuka Kona International at Keahole Airport (KOA) in Kona, HI

  • 65 miles (105 km) away from ITO
  • Usually 24.40% less expensive than ITO
  • Nonstop flights available

See SEA to KOA flights

Destination alternative #3: Lanai Airport (LNY) in Lanai, HI

  • 144 miles (232 km) away from ITO
  • Usually 1.32% less expensive than ITO
  • 1-layover flights available

See SEA to LNY flights


Flight Hacking SEA to ITO

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SEA to ITO — but Champion Traveler does!

Hack #1: Honolulu, HI (SEA > HNL > ITO)

  • Price for both tickets: $658
  • Average savings: $25 (3.59%)

See SEA to HNL flights


Flight Questions Answered

Still have questions about flying from SEA to ITO? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Alaska, American, Delta, Hawaiian, Southwest, United, and potentially more during busy seasons.

How far away is it from Hilo International Airport to Seattle/Tacoma International Airport?

The distance between the two airports is roughly 2650 miles or 4265 kilometers.

How long does it take to fly from SEA to ITO?

The real-world flight time for a nonstop SEA to ITO flight is about 5 hour 45 minutes.

How many flights go between Seattle, WA and Hilo, HI?

It depends on the day of the week and the date, but a typical day might have around 70 available flights from SEA to ITO.


Airport Location Info


Departing Airport

Origination code SEA
Origination airport name Seattle/Tacoma International Airport
City Seattle, WA
Country the United States
Latitude 47.5
Longitude -122.3

Return Airport

Destination code ITO
Destination airport name Hilo International Airport
City Hilo, HI
Country the United States
Latitude 19.7
Longitude -155


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.