$298 Find Cheap Flights from Sioux Falls to Washington - Compare and Save

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Cheap Flights from Sioux Falls to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Seattle
Seattle1 stop$379
Spokane
Spokane1 stop$369
Pasco
Pasco1 stop$434
Bellingham
Bellingham1 stop$527
Seattle
Seattle1 stop$379
Spokane
Spokane1 stop$369
Pasco
Pasco1 stop$434
Bellingham
Bellingham1 stop$527
Booking Insights

Price, demand and travel trends for Sioux Falls to Washington flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Sioux Falls to Washington recently?

Here are the cheapest round-trip fares from Sioux Falls to Washington on KAYAK in the last week:

• Spokane (GEG) from $369
• Seattle/Tacoma Intl (SEA) from $379
• Bellingham (BLI) from $527

How do fares into airports in Washington compare?

According to KAYAK data from the last 12 months, the cheapest airports to fly into Washington from Sioux Falls are:

• Spokane (GEG) (avg. price $443)
• Pasco Tri Cities (PSC) (avg. price $464)
• Seattle/Tacoma Intl (SEA) (avg. price $487)

What's the cheapest month to fly from Sioux Falls to Washington?

April is typically the cheapest month to fly from Sioux Falls to Washington, with round-trip fares averaging $358. July and June are usually the most expensive, averaging $694 and $529, respectively.

How do fares from Sioux Falls to Washington vary by day of the week?

On average, Friday is the cheapest day to fly from Sioux Falls to Washington and Monday is the most expensive. Looking at the past 12 months of KAYAK data, it's 40% more expensive to fly on a Monday compared to Friday.

What's the best time of day to fly from Sioux Falls to Washington?

It's cheapest to fly to Washington in the evening with average prices of $460. The morning is the most expensive time to fly, with average prices of $502.

What's the best time to book a flight from Sioux Falls to Washington?

Book your flights 24 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 51% compared to booking at the last minute (within 2 weeks of departure).

Key details for Sioux Falls to Washington flights

Low season

February

Cheapest flight

$298
Beat the crowds with an average 24% drop in travelers.
The most popular month to fly with an average 40% increase in travelers.
One-way flight from Sioux Falls to Seattle

Your Sioux Falls to Washington flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Sioux Falls to Washington?

    Yes. Fares from Sioux Falls to Washington are low right now. As a rule of thumb, a round-trip under $387 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Sioux Falls to Washington?

    Over the past 12 months, round-trip fares from Sioux Falls to Washington have typically cost between $387 and $600.

  • What are the main airports serving Washington?

    There are 21 airports in Washington. 64% of KAYAK users choose Seattle/Tacoma Intl (SEA) as their arrival airport, while 26% choose Spokane (GEG).

  • Which airlines fly nonstop from Sioux Falls to Washington?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Sioux Falls to Washington. One-stop options include United Airlines and Delta.

  • Which destinations in Washington can I fly nonstop from Sioux Falls?

    Based on the flight schedule for the next 3 months, there are no nonstop flights from Sioux Falls to Washington. The most popular destination you can reach with one stop is Seattle.

  • Which cabin classes are available from Sioux Falls to Washington?

    On flights from Sioux Falls to Washington you can book Economy Class or First Class.

  • What are some popular landmarks around Washington?

    Washington is home to many popular sights. KAYAK travelers' favorites include:

    • Pike Place Market
    • Lumen Field
    • Space Needle
    • Seattle Waterfront

Your guide to booking Sioux Falls to Washington flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 24 weeks before your trip. KAYAK data shows fares in this window are around 51% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • Flexible with your dates? Fly in April to save some money. It's typically the cheapest month on this route, while flights in July will cost you the most.
  • Fly out on a Friday to get the cheapest fares. Avoid Monday flights, which are about 40% more expensive.
  • If you're watching your budget, fly into Spokane (GEG) which has the lowest average airfare in the region. Just remember to budget for any onward travel by bus, car or domestic flight.
  • Start your trip in Seattle, the most popular destination in Washington. From there, it's easy to continue on to other popular spots such as Spokane, SeaTac and Leavenworth.

Reviews of the top 3 airlines serving from Sioux Falls to Washington

 
Need help choosing which airline to fly with from Sioux Falls to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8719 reviews
7.8Entertainment
7.2Food
8.1Boarding
8.5Crew
7.8Comfort
Airline reviews

Rude staff from baggage check to gate crew. Poor instructions. Inconsistent application of baggage rules.

6.0 GoodKatharine, Oct 2026
Read more Delta reviews

Rude staff from baggage check to gate crew. Poor instructions. Inconsistent application of baggage rules.

more room in seats, larger snacks, more comms with delays

The plane was a rather tired 737-800, with old style small luggage bins. Poor air flow. USB charger in the infotainment system was not functioning. The flight was 2 hours late due to crew rest requirements (not their fault). On arrival in Seattle, waited on the tarmac for 30 minutes with very few updates from the crew.

One of the restrooms didn’t work. The ones that did never got replenished. Flight attendant just sitting there on their phone. No notification that the bathroom was broken so long lines. Apathetic crew.

I am in a wheelchair The gate agent knew exactly how to boarding A wheelchair first also the flight attendant knew exactly what she was doing

Not really a “Delta” problem but worth mentioning: Boarding was a difficult process. TSA seemed understaffed and Pre-Check took longer than regular TSA. The supervisor was frazzled and yelled at travelers. Once through TSA, we had to put our carry-ons through another x-ray machine. Then queue up to board with both boarding pass and ID. Then, when we got to the stairs on the tarmac, we had to show our boarding pass again. Maybe this is just normal for Kona since the terminal is outdoors (but still a “secured” area).

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

This was an auto-rebook due to being delayed from an earlier UA connecting flight. The boarding was fine, but they sat me in a middle seat when my original booking was a window seat. Overall, the flight was fine as it still got me to my final destination.

The flight was delayed by a hour and I wish they had communicated it sooner. No issues on the plane, it did take a while for food to come.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

leg space better than expected. two washrooms for one plane isn't enough.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

Everything was fantastic. Modern plane. All the amenities! Although the paid snacks and meals are pure robbery. Like i understand airlines need to make money, but 11$ USD for an overnight oats with some nuts in it and barely any pieces of apple.... Highway robbery

Never happened, because of the first delayed flight I lost the connection and had to wait overnight and take two flights to reach my destination.

The flight was delayed, but other than that everything was fine.

The flight was delayed a dozen times and finally took off 3 hours late. American gave us 12 dollar vouchers which barely buys you a water at the airport. Options to rebook were easy to access and complete although I didn't go this route.

Although there were two delays, they were communicated clearly and the boarding process was expedited. The crew was pleasant and efficient.

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

I had a carry on and a personal bag. I put my personal item under my seat and on way to the seat I put my bag up. I usually close my eyes and rest as I was on call for last 36 hours. I heard very loud announcements that someone needs to identify their bag. Pretty sure it was not mine until the hostess pointed out my jacket details attached to the bag. I asked why she got my bag out. I got berated and did not want to create a scene. But this person needs to be talked to.

It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

The main problem was delay. The plane was at the gate early and bags were loaded. However, there was no crew for the flight. They were inbound from LGA and had to land and make their way to our gate. It took more than 40 minutes. Then, once the crew arrived and boarded, one of the crew members had to deplane and then a replacement crew member had to be found. It took another 40 minutes or so to get the final crew member. In all, we took off about 2 hours later than our scheduled departure time. Once in the air, the flight was great. Smooth most of the way. The crew was professional and efficient.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

More options for your flight from Sioux Falls to Washington

Complete your trip to Washington with a hotel stay or car rental