Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl are usually found in January or February, booked 77 days in advance, depart on a Wednesday or Monday and return on a Monday
Find flight deals from Boise to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 December 2025.
Have a flexible travel schedule? Discover the best time to fly to Seattle from Boise with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
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Everything you need to know about your flight from Boise to Seattle
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How far ahead should I book a flight from Boise to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from Boise to Seattle. Price data was last updated on 5 December 2025.
The price you pay for your flight from Boise to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 65 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Boise to Seattle?
Currently, January is the cheapest month in which you can book a flight from Boise to Seattle (average of C$ 137). Flying from Boise to Seattle in July is currently the most expensive (average of C$ 272). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BOI to SEA?
Find hourly flight availability from Boise to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.
A simple way to save on the total cost of your ticket is to fly from Boise to Seattle at noon. If you’re flexible enough to do this you can expect to save up to 71% on your trip compared to booking a flight in the afternoon.
Weekly flight availability from Boise to Seattle
Explore weekly flight availability from Boise to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 December 2025.
The most flights from BOI to SEA are scheduled on a Thursday (54 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (43 on average).
How often are flights from Boise to Seattle delayed?
About 12% of weekly flights between Boise and Seattle have experienced delays in the past year, with the average delay time being 115 minutes.
What is the most punctual flight time for Boise to Seattle flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Boise to Seattle flights?
Over the past year, Delta has had the lowest number of delays on this route, with just 7% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Boise to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How popular is this Boise to Seattle flight route?
This flight path from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.
What are the most reliable airlines from Boise to Seattle?
No one likes to see their flight delayed. When booking a flight from Boise to Seattle consider choosing Virgin Atlantic (95%), Aeromexico (91%) or Delta (90%) as they are the most reliable in getting you off to your destination on time.
Can I find deals for flights from Boise to Seattle that include hotel bookings?
Yes. In addition to deals on Boise to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boise to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Seattle.
Can I find deals for business class flights from Boise to Seattle?
Yes. Cheapflights offers flight deals from Boise to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Boise to Seattle?
Currently, January is the cheapest month in which you can book a flight from Boise to Seattle (average of C$ 137). Flying from Boise to Seattle in July is currently the most expensive (average of C$ 272). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Boise to Seattle?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Boise today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Boise to Seattle?
Millions of users choose and trust Cheapflights to book the best flight deals from Boise to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Boise to Seattle with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Boise to Seattle, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Boise to Seattle become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Boise today and book when prices fit your budget.
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