What are the cheapest airlines flying from Sioux Falls to Seattle round-trip?

Our cheapest airline available from Sioux Falls to Seattle is United Airlines. Our recent data shows that you can find tickets from as low as $268 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $323 and $378 round-trip. These flights start at 50% lower than the current average price 3 months from now.

What is the cheapest day to fly from Sioux Falls to Seattle?

Travelers seeking maximum savings on their Sioux Falls to Seattle flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Sioux Falls to Seattle?

Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from Sioux Falls to Seattle.

What is the cheapest day to fly round-trip from Sioux Falls to Seattle?

Monday is generally a great day to depart. Flying on this day could help you save up to 37%.

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

Users have found that booking a flight from Sioux Falls to Seattle at least 30 days early can save you up to 55% on average compared to booking a flight this week. If booking 30 days before your flight isn’t an option for you, users have found flights from Sioux Falls to Seattle for as little as $260 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $260 for flights departing within the next 3 days.

What is the cheapest month to fly from Sioux Falls to Seattle?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, October can be a great choice for travel to Seattle. Flights to Seattle from Sioux Falls in October are about $537 on average during October, but can be found for as low as $138.

Most accurate provider : When it comes to deals on Sioux Falls-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux Falls-Seattle flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Sioux Falls-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sioux Falls-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Sioux Falls to Seattle that include hotel bookings?

Yes. In addition to deals on Sioux Falls to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Sioux Falls to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Seattle.

Can I find deals for business class flights from Sioux Falls to Seattle?

Yes. Cheapflights offers flight deals from Sioux Falls 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.

$268+ Flights from Sioux Falls to Seattle

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Sioux Falls Joe Foss Field to Seattle/Tacoma Intl are usually found in October or January, booked 29 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Cheap flight deals from Sioux Falls to Seattle

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$268 (United Airlines)
Popular in	June
Cheapest in	October
Average price	$594

Provider with most accurate pricing for Sioux Falls Joe Foss Field-Seattle/Tacoma Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Seattle/Tacoma Intl flights.

Search Deals

From Sioux Falls Joe Foss Field to Seattle/Tacoma Intl

Search Deals

High demand for flights, 8% potential price rise

Search Deals

Best time to find cheap flights, 1% potential price drop

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Average for round-trip flights in December 2024

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Find flight deals from Sioux Falls to Seattle

Cheapest flights from Sioux Falls to Seattle
Explore the most affordable flight options available from Sioux Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2024.

Mon 12/237:42 pmFSD - SEA

1 stop5h 53mDelta

Thu 12/266:10 amSEA - FSD

1 stop7h 32mDelta

Deal found 12/22

$438

Mon 12/308:34 pmFSD - SEA

1 stop18h 36mFrontier

Fri 1/39:36 pmSEA - FSD

1 stop20h 04mFrontier

Deal found 12/21

$531

Mon 12/306:17 amFSD - SEA

1 stop14h 43mAmerican Airlines

Thu 1/212:31 amSEA - FSD

1 stop9h 11mAmerican Airlines

Deal found 12/21

$691

Mon 12/239:10 amFSD - SEA

2 stops14h 05mUnited Airlines

Thu 12/2610:56 amSEA - FSD

1 stop9h 19mUnited Airlines

Deal found 12/22

$702

Mon 12/309:06 amFSD - SEA

2 stops27h 29mMultiple Airlines

Fri 1/36:11 amSEA - FSD

3 stops35h 44mMultiple Airlines

Deal found 12/21

$731

Best flights from Sioux Falls to Seattle
Discover carefully curated flight deals from Sioux Falls to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2024.

Fri 2/75:10 pmFSD - SEA

1 stop7h 59mUnited Airlines

Mon 2/1012:35 pmSEA - FSD

1 stop5h 48mUnited Airlines

Deal found 12/22

$268

Fri 2/211:18 pmFSD - SEA

1 stop5h 36mDelta

Mon 2/243:34 pmSEA - FSD

1 stop5h 33mDelta

Deal found 12/22

$323

Fri 2/145:41 pmFSD - SEA

1 stop7h 38mAmerican Airlines

Mon 2/1711:59 pmSEA - FSD

1 stop9h 46mAmerican Airlines

Deal found 12/22

$378

Tue 2/2512:23 pmFSD - SEA

2 stops24h 12mAlaska Airlines

Mon 3/1711:46 amSEA - FSD

1 stop8h 52mAlaska Airlines

Deal found 12/22

$508

Sun 1/511:43 amFSD - SEA

1 stop10h 43mMultiple Airlines

Sun 1/127:10 amSEA - FSD

3 stops27h 04mMultiple Airlines

Deal found 12/22

$579

Last-minute flights from Sioux Falls to Seattle
Discover last-minute flight deals from Sioux Falls to Seattle. Data last updated December 23, 2024 and is based on user searches.

Mon 12/237:42 pmFSD - SEA

1 stop5h 53mDelta

Thu 12/266:10 amSEA - FSD

1 stop7h 32mDelta

Deal found 12/22

$438

Mon 12/308:34 pmFSD - SEA

1 stop18h 36mFrontier

Fri 1/39:36 pmSEA - FSD

1 stop20h 04mFrontier

Deal found 12/21

$531

Mon 12/306:17 amFSD - SEA

1 stop14h 43mAmerican Airlines

Thu 1/212:31 amSEA - FSD

1 stop9h 11mAmerican Airlines

Deal found 12/21

$691

Mon 12/309:06 amFSD - SEA

2 stops27h 29mMultiple Airlines

Fri 1/36:11 amSEA - FSD

3 stops35h 44mMultiple Airlines

Deal found 12/21

$731

Mon 12/305:10 pmFSD - SEA

2 stops23h 05mUnited Airlines

Fri 1/33:22 pmSEA - FSD

1 stop22h 52mUnited Airlines

Deal found 12/21

$760

Sun 1/511:43 amFSD - SEA

1 stop10h 43mMultiple Airlines

Sun 1/127:10 amSEA - FSD

3 stops27h 04mMultiple Airlines

Deal found 12/22

$579

Sun 1/51:25 pmFSD - SEA

1 stop22h 28mUnited Airlines

Sun 1/126:00 pmSEA - FSD

1 stop27h 46mUnited Airlines

Deal found 12/22

$675

Find flights from Sioux Falls to Seattle within your budget

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 2/7

5:10 pm-11:09 pm

1 stop7h 59m

Seattle/Tacoma Intl

Mon 2/10

12:35 pm-8:23 pm

1 stop5h 48m

$268

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 2/21

1:18 pm-4:54 pm

1 stop5h 36m

Seattle/Tacoma Intl

Mon 2/24

3:34 pm-11:07 pm

1 stop5h 33m

$323

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Fri 2/14

5:41 pm-11:19 pm

1 stop7h 38m

Seattle/Tacoma Intl

Mon 2/17

11:59 pm-11:45 am

1 stop9h 46m

$378

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Tue 2/25

12:23 pm-10:35 am

2 stops24h 12m

Seattle/Tacoma Intl

Mon 3/17

11:46 am-10:38 pm

1 stop8h 52m

$508

Sioux FallsSeattle

FSD - SEA

FSDSEA

Sioux Falls Joe Foss Field

Sun 1/5

11:43 am-8:26 pm

1 stop10h 43m

Seattle/Tacoma Intl

Sun 1/12

7:10 am-12:14 pm

3 stops27h 04m

$579

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Compare providers for flights from Sioux Falls to Seattle

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sioux Falls to Seattle in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Mytrip	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
Priceline	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Sioux Falls-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux Falls-Seattle flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Sioux Falls-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sioux Falls-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sioux Falls to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Sioux Falls 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.

Travel insights for flights from Sioux Falls to Seattle

Get recent, data-driven insights about flights from Sioux Falls to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Sioux Falls to Seattle?

The price you pay for your flight from Sioux Falls to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 29 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 Sioux Falls to Seattle?

Currently, January is the cheapest month in which you can book a flight from Sioux Falls to Seattle (average of $238). Flying from Sioux Falls to Seattle in July is currently the most expensive (average of $411). 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 FSD to SEA?

It’s optimal to fly from Sioux Falls to Seattle at noon. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the morning.

Rainfall in Seattle by month

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Peruse reviews from past customers who have flown with United Airlines and American Airlines from Sioux Falls to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,549 reviews

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

Alaska Airlines

8.0

Very good

9,549 reviews

Alaska Airlines

8.0

Very good

9,549 reviews

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

Delta

8.0

Very good

8,594 reviews

Alaska Airlines

8.0

Very good

9,549 reviews

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

United Airlines

7.4

Good

9,022 reviews

Alaska Airlines

8.0

Very good

9,549 reviews

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,549 reviews

Reviews

1 / 10

How do online staff who book reservations get a passenger’s birthdate wrong

Related info for your journey

What are the cheapest airlines flying from Sioux Falls to Seattle round-trip?
Our cheapest airline available from Sioux Falls to Seattle is United Airlines. Our recent data shows that you can find tickets from as low as $268 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $323 and $378 round-trip. These flights start at 50% lower than the current average price 3 months from now.
Can I find deals for flights from Sioux Falls to Seattle that include hotel bookings?
Yes. In addition to deals on Sioux Falls to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sioux Falls to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux Falls to Seattle.
Can I find deals for business class flights from Sioux Falls to Seattle?
Yes. Cheapflights offers flight deals from Sioux Falls 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 Sioux Falls to Seattle?
Currently, January is the cheapest month in which you can book a flight from Sioux Falls to Seattle (average of $238). Flying from Sioux Falls to Seattle in July is currently the most expensive (average of $411). 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.

See more FAQs

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Other flights to Seattle

Top 4 airlines flying from Sioux Falls to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$133	Average$254	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$268	Average$622	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$348	Average$557	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$428	Average$640	FlexibilityNo cancel fee	On-time69%

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$268+ Cheap flights from Sioux Falls to Seattle (FSD - SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sioux Falls to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

The best prices from Sioux Falls Joe Foss Field to Seattle/Tacoma Intl are usually found in October or January, booked 29 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Cheap flight deals from Sioux Falls to Seattle

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Sioux Falls to Seattle

Cheapest flights from Sioux Falls to SeattleExplore the most affordable flight options available from Sioux Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2024.

Explore the most affordable flight options available from Sioux Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2024.

Find flights from Sioux Falls to Seattle within your budget

Compare providers for flights from Sioux Falls to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sioux Falls to Seattle in December.

Best time to book a flight from Sioux Falls to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Sioux Falls with our price prediction graph.

Travel insights for flights from Sioux Falls to Seattle

Get recent, data-driven insights about flights from Sioux Falls to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Sioux Falls to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Sioux Falls to Seattle. Price data was last updated on December 20, 2024.

What is the cheapest month to book a flight from Sioux Falls to Seattle?

What is the cheapest time of day to fly from FSD to SEA?

Find hourly flight availability from Sioux Falls 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 December 23, 2024.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

Reviews of airlines servicing Seattle

Peruse reviews from past customers who have flown with United Airlines and American Airlines from Sioux Falls to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Sioux Falls to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Sioux Falls to Seattle round-trip?

Can I find deals for flights from Sioux Falls to Seattle that include hotel bookings?

How can I find direct flights from Sioux Falls to Seattle?

Can I find deals for business class flights from Sioux Falls to Seattle?

What is the cheapest month to book a flight from Sioux Falls to Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sioux Falls to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Sioux Falls to Seattle

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Cheapest flights from Sioux Falls to Seattle
Explore the most affordable flight options available from Sioux Falls to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2024.