Q: What is the typical price of a round-trip flight between Dallas and Seattle?

Prices are currently low for flights on this route. Typical prices usually range from $238 to $387. The lowest price recently found on this route was $155.

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 Dallas is on a Friday. momondo users have found tickets for Friday departures for as low as $326. 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 Dallas because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $449.

Question 2

What airlines fly to Seattle?

Accepted Answer

Alaska Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Seattle from Dallas according to our data. Alaska Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Question 3

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

Accepted Answer

You are more likely to see cheaper flights to Seattle from Dallas when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $274 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Dallas for as low as $254 on momondo.

Question 4

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

Accepted Answer

Flying to Seattle from Dallas in the morning is the least expensive time of day to depart. momondo users have found prices as low as $368 when looking at flights departing in the morning. Flights to Seattle are more costly in the evening, with an average ticket price of $410. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Question 5

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

Accepted Answer

The number of flights available between Dallas and Seattle is 36 per day as of December 2025. The most frequent departure time is 6:00PM, with 34% of daily flights leaving in the afternoon.

Question 6

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

Accepted Answer

258 flights are operational weekly from Dallas to Seattle as of December 2025. The most popular departure day for this route is Fri, with 22% of flights per week taking off on this day.

Question 7

How often are flights from Dallas to Seattle delayed?

Accepted Answer

Historically, on average around 19% of flights between Dallas and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 157 minutes.

Question 8

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

Accepted Answer

Fly from Dallas/Fort Worth to Seattle/Tacoma Intl for the best Dallas - Seattle/Tacoma Intl flight prices

Question 9

What is the typical price of a round-trip flight between Dallas and Seattle?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from $238 to $387.
The lowest price recently found on this route was $155.

Question 10

What is the cheapest month to fly to Seattle?

Accepted Answer

In general, January is the cheapest month to fly from Dallas to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $197. If you don’t want to visit Seattle in January, then you should wait until February to fly from Dallas, when ticket prices are also cheap, with an average price of $227.

Question 11

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

Accepted Answer

Delta, American Airlines, and Southwest are the most popular carriers operating from Dallas to Seattle/Tacoma Intl

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

There are 4 cabin classes available to choose from on Dallas 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 14

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

Accepted Answer

According to our data, Frontier have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

Question 15

What is the most punctual flight time for Dallas 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 16

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

Accepted Answer

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

Question 17

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

Accepted Answer

There are 8 operators available for flights from Dallas to Seattle/Tacoma Intl Airport as of December 2025.

Question 18

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

Accepted Answer

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Dallas to Seattle/Tacoma Intl Airport.

Question 19

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

Accepted Answer

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Fastest flight time	4h 10m
Direct flights	Every day
Airports in Seattle	1 airport

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $66	Free Cancellation	Rating 5.8 3,083 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $76	Free Cancellation	Rating 6.3 8,182 reviews	Search Spirit Airlines flights
Hawaiian Airlines	PriceFrom $123	Free Cancellation	Rating 7.8 2,818 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $131	Free Cancellation	Rating 7.9 8,006 reviews	Search Delta flights
Southwest	PriceFrom $165	Free Cancellation	Rating 7.9 4,253 reviews	Search Southwest flights
United Airlines	PriceFrom $183	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $184	Free Cancellation	Rating 8.0 11,444 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.2 11,052 reviews	Search American Airlines flights

Cheap flights from Dallas to Seattle from $84

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dallas to Seattle departing on 1/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Dallas to Seattle

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Southwest flights from Dallas to Seattle

Our best Southwest deals on Dallas to Seattle flight tickets

Hawaiian Airlines flights from Dallas to Seattle

Our best Hawaiian Airlines deals on Dallas to Seattle flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Dallas to Seattle that are best for you.

See travel insights to Seattle from

How to get the cheapest flight ticket from Dallas to Seattle

What is the typical price of a round-trip flight between Dallas and 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 Dallas to Seattle/Tacoma Intl flight route?

Fly from Dallas/Fort Worth to Seattle/Tacoma Intl for the best Dallas - Seattle/Tacoma Intl flight prices

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

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

There are 4 cabin classes available to choose from on Dallas 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.

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

Delta, American Airlines, and Southwest are the most popular carriers operating from Dallas to Seattle/Tacoma Intl

What airlines fly to Seattle?

How often are flights from Dallas to Seattle delayed?

Historically, on average around 19% of flights between Dallas and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 157 minutes.

What is the most punctual flight time for Dallas 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?

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

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

According to our data, Frontier have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

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

The number of flights available between Dallas and Seattle is 36 per day as of December 2025. The most frequent departure time is 6:00PM, with 34% of daily flights leaving in the afternoon.

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

258 flights are operational weekly from Dallas to Seattle as of December 2025. The most popular departure day for this route is Fri, with 22% of flights per week taking off on this day.

Cheap Dallas to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dallas to Seattle

Fastest flight time

Direct flights

Airports in Seattle

How far is Dallas to Seattle/Tacoma Intl by plane?

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

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

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

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

Best airlines flying from Dallas to Seattle

Compare and see reviews for airlines that fly from Dallas to Seattle with momondo

Traveling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Dallas to Seattle?

Can I find flights from Dallas to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from Dallas to Seattle?

I’m not ready to book a flight from Dallas to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington