$228 Cheap Flights from Seattle (SEA) to Kailua-Kona (KOA)

Seattle (SEA) to Kailua-Kona (KOA) at a glance

Travel with a selection of airlines that operate flights from Seattle (SEA) to Kailua-Kona (KOA) on this domestic long-haul route. Whether you’re looking for budget-friendly options or prefer full-service carriers, you can compare various choices to find the itinerary that suits your budget and schedule. As you plan your visit to Kailua-Kona's renowned attractions and neighborhoods, be sure to check the essential details for flights from Seattle-Tacoma International Airport (SEA) to Kona International Airport (KOA).

• Fastest flight duration: around 6h 15m non-stop
• Route distance: roughly 2,700 miles (4,350 km)
• Flights per week: around 25+ flights with multiple daily departures on average
• Typical fares (one-way): economy tickets often range from $130–$565, depending on seasonality and how far ahead you book

Flights from Seattle - Tacoma International Airport (SEA) to Kona International Airport (KOA)

Based on recent traveler bookings, here are the top airlines favored for flights from Seattle to Kailua-Kona, particularly for non-stop and one-stop options. Common layover spots include San Francisco International Airport (SFO) with an approximate layover of 1 hour and 45 minutes, Daniel K. Inouye International Airport (HNL) with about a 1 hour and 30 minutes layover, and Sacramento International Airport (SMF) with a similar 1 hour and 45 minutes. These choices provide the flexibility to combine price, total travel time, and cabin class to create the ideal itinerary.

• Alaska Airlines: This full-service airline provides both non-stop and one-stop flights, with one-way ticket prices generally falling between $160 and $840. It dominates the route, making up around 53% of departures, and offers a typical non-stop flight duration of 6 hours and 15 minutes.
• Delta: As a full-service airline, Delta provides non-stop and one-stop options, with one-way fares usually ranging from $130 to $740. It accounts for roughly 21% of flights on this route, featuring a standard non-stop travel time of 6 hours and 15 minutes.
• Hawaiian Airlines: Offering both non-stop and one-stop services, this full-service carrier has one-way fares that typically span from $160 to $655. It represents about 15% of departures on this route, with a usual non-stop journey time of 6 hours and 15 minutes.
• United: This full-service airline offers one-stop flights, with one-way fares typically between $130 and $535. United makes up approximately 7% of departures on this route, featuring an in-flight duration of 7 hours and 30 minutes, with a total travel time of around 9 hours and 15 minutes, including layover.
• Southwest Airlines: As a budget-friendly carrier, Southwest provides one-stop service with one-way fares generally ranging from $130 to $565. It comprises about 3% of departures on this route, with an in-flight time of 7 hours and 30 minutes and a total journey time of roughly 9 hours and 15 minutes, including a layover.

Travelers flying from Seattle to Kailua-Kona have the option to enhance their journey with upgrades. Delta provides first class and premium economy service, while Alaska Airlines features first class and business class options. Hawaiian Airlines also offers first class service.

Best time to fly from Seattle (SEA) to Kailua-Kona (KOA)

The most popular months for travelers flying from Seattle to Kailua-Kona are February, March, and April, when peak temperatures in Kailua-Kona reach up to 72.5°F in April. If you prefer quieter travel, consider September, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 76.1°F. For better deals, January usually offers the lowest average one-way fare around $265. Flight availability peaks in February, with approximately 33 flights per week, making it easier to find convenient departure times.

• Cheapest time to fly: January usually offers good deals with average one-way fare around $265, roughly 21% cheaper than the yearly average.
• Another budget-friendly time to fly: September typically offers an average one-way fare of around $279.
• Most flight options: February has the highest number of flights from Seattle to Kailua-Kona, with approximately 33 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Seattle (SEA) to Kailua-Kona (KOA)

• Seattle to Kahului (SEA-OGG): Kahului Airport (OGG) is located approximately 84 miles from Kona International Airport (KOA). One-way economy prices for this journey generally fall between $140 and $600, influenced by the season and how far in advance you book. Flights on this route are available as both non-stop and one-stop options. Major airlines servicing this route include Alaska Airlines and Hawaiian Airlines. Additionally, business and first class service is offered on these flights.

How to find the best prices for flights from Seattle (SEA) to Kailua-Kona (KOA)

Getting some of the best deals on flights from Seattle to Kailua-Kona is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually found when booking 2 to 8 weeks in advance, which aligns with when most travelers make their reservations. Afternoon departures from 12 PM to 6 PM tend to offer lower prices and are also the most popular times to fly. Additionally, Monday flights generally provide cheaper options, while Thursday remains the most favored travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Kailua-Kona hotel and flight deals.
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Kona International Airport from Seattle - Tacoma International Airport

Kailua-Kona welcomes travelers from Seattle with a range of transport options based on price, convenience, and proximity. For departures, Seattle - Tacoma International Airport is roughly a 20-minute drive (covering about 14 miles) from central Seattle. Here's how to reach Kailua-Kona efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Kailua-Kona, with private rides that can be arranged in advance.
• Car rental: Renting a car from Kona International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Kona International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Kona International Airport, Kona-Hawaii Seaport, a seaport, is located about 0.1 miles away on foot.

Seattle to Kailua-Kona Flights

The cheapest times to fly from Seattle to Kailua-Kona

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Kailua-Kona are during the month of November. You can find some of the cheapest flights from Seattle to Kailua-Kona with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Seattle to Kailua-Kona

Sunday is one of the best days to book for cheap flights from Seattle to Kailua-Kona: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Seattle to Kailua-Kona

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Kailua-Kona in 2026. You can also book with separate airlines for your outbound and return journeys, from $228 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Kailua-Kona flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Kailua-Kona airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.