Question 1

What is the cheapest day to depart on your flight to Seattle?

Accepted Answer

On average, the least expensive day to fly to Seattle from United States is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $465. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from United States because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $548.

Question 2

What cabin class options are available on United States to Seattle/Tacoma Intl flights?

Accepted Answer

There are 4 cabin classes available to choose from on United States to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 3

How often are flights from the United States to Seattle delayed?

Accepted Answer

Historically, on average around 14% of flights between United States and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 149 minutes.

Question 4

What is the cheapest United States to Seattle/Tacoma Intl flight route?

Accepted Answer

Fly from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl for the best United States - Seattle/Tacoma Intl flight prices

Question 5

What airlines fly to Seattle?

Accepted Answer

Alaska Airlines, Delta and Frontier are the top three most popular airlines that fly to Seattle from United States according to our data. Alaska Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 10 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Question 6

How long does it take to fly to Seattle?

Accepted Answer

Flight times vary depending on what airport in United States you fly out of and what airport in Seattle you fly into. For example, flying from San Francisco to Seattle takes 1h 59m on average. On the other hand, flying from Los Angeles to Seattle takes 2h 51m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Question 7

Can stopping save me money on United States to Seattle flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between United States to Seattle.

Question 8

What is the cheapest month to fly to Seattle?

Accepted Answer

In general, October is the cheapest month to fly from United States to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $287. If you don’t want to visit Seattle in October, then you should wait until September to fly from United States, when ticket prices are also cheap, with an average price of $317.

Question 9

What is the cheapest time of day to depart on your flight to Seattle?

Accepted Answer

Flying to Seattle from United States in the evening is the least expensive time of day to depart. momondo users have found prices as low as $381 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $573. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Question 10

How many flights depart from United States to Seattle on average per day?

Accepted Answer

164 flights are operational daily from United States to Seattle as of December 2025. The most popular departure time for this route is 7:00AM, with 40% of flights per day taking off at noon.

Question 11

What is the cheapest airline that flies from United States to Seattle/Tacoma Intl?

Accepted Answer

Frontier, Alaska Airlines, and Delta are the most popular carriers operating from United States to Seattle/Tacoma Intl

Question 12

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Question 13

What is the most punctual flight time for the United States to Seattle flights?

Accepted Answer

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Question 14

How many flights depart from United States to Seattle on average per week?

Accepted Answer

1,148 flights are operational weekly from United States to Seattle as of December 2025. The most popular departure day for this route is Tue, with 34% of flights per week taking off on this day.

Question 15

How far in advance should I book a flight to Seattle?

Accepted Answer

You are more likely to see cheaper flights to Seattle from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $421 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from United States for as low as $344 on momondo.

Question 16

Which airline has the best punctuality record on the United States to Seattle flights?

Accepted Answer

According to our data, SkyWest Airlines have had the least number of delays on this route over the last 12 months; with about 6% of their flights experiencing any sort of delay.

Question 17

When did momondo last update prices for flights from United States to Seattle/Tacoma Intl Airport?

Accepted Answer

Prices for flights from United States to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

Question 18

How many operators does momondo search for flights from United States to Seattle/Tacoma Intl Airport?

Accepted Answer

As of December 2025, there are 10 operators available to choose from for flights from United States to Seattle/Tacoma Intl Airport.

Question 19

How old do you have to be to fly from United States to Seattle/Tacoma Intl Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Seattle/Tacoma Intl Airport.

Question 20

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

Accepted Answer

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best Price Found	$84
Fastest flight time	0h 50m
Direct flights	Every day
Airports in Seattle	1 airport

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $51	Free Cancellation	Rating 5.8 3,082 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $58	Free Cancellation	Rating 6.3 8,188 reviews	Search Spirit Airlines flights
Hawaiian Airlines	PriceFrom $103	Free Cancellation	Rating 7.8 2,819 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $106	Free Cancellation	Rating 7.9 8,010 reviews	Search Delta flights
Southwest	PriceFrom $117	Free Cancellation	Rating 7.9 4,250 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $119	Free Cancellation	Rating 8.0 11,465 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $127	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
JetBlue	PriceFrom $145	Free Cancellation	Rating 7.2 2,895 reviews	Search JetBlue flights
Sun Country Air	PriceFrom $153	Free Cancellation	Rating 6.9 333 reviews	Search Sun Country Air flights
American Airlines	PriceFrom $174	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights

Cheap flights from the United States to Seattle from $45

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Seattle departing on 1/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from United States to Seattle

What is the cheapest month to fly to Seattle?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

What is the cheapest United States to Seattle/Tacoma Intl flight route?

Fly from Las Vegas Harry Reid Intl to Seattle/Tacoma Intl for the best United States - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

What cabin class options are available on United States to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on United States to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United States to Seattle flights?

No. A direct flight is the cheapest option for a flight between United States to Seattle.

What is the cheapest airline that flies from United States to Seattle/Tacoma Intl?

Frontier, Alaska Airlines, and Delta are the most popular carriers operating from United States to Seattle/Tacoma Intl

What airlines fly to Seattle?

How often are flights from the United States to Seattle delayed?

Historically, on average around 14% of flights between United States and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 149 minutes.

What is the most punctual flight time for the United States to Seattle flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United States to Seattle flights?

According to our data, SkyWest Airlines have had the least number of delays on this route over the last 12 months; with about 6% of their flights experiencing any sort of delay.

How many flights depart from United States to Seattle on average per day?

164 flights are operational daily from United States to Seattle as of December 2025. The most popular departure time for this route is 7:00AM, with 40% of flights per day taking off at noon.

How many flights depart from United States to Seattle on average per week?

1,148 flights are operational weekly from United States to Seattle as of December 2025. The most popular departure day for this route is Tue, with 34% of flights per week taking off on this day.

How long does it take to fly to Seattle?

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When did momondo last update prices for flights from United States to Seattle/Tacoma Intl Airport?

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How old do you have to be to fly from United States to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

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