How does KAYAK find such low prices on flights from Washington to Sioux City?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Sioux City.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Sioux City?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux City from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to Sioux City?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux City with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Sioux City?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux City from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$328 CHEAP FLIGHTS from Washington to Sioux City

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Flight Deals

Cheap Flights from Washington to Sioux City

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

Recent round-trip flight deals from Washington to Sioux City

Fri, Oct 30 - Fri, Nov 6

1:16 pm - 11:43 pmSEA Seattle/Tacoma Intl-SUX Sioux City Sioux Gateway

8h 27m2 stops San Francisco Denver Intl

6:45 pm - 11:15 pmSUX Sioux City Sioux Gateway-SEA Seattle/Tacoma Intl

6h 30m1 stop Denver Intl

$328United Airlines

Fri, Nov 13 - Thu, Nov 19

3:49 pm - 11:43 pmSEA Seattle/Tacoma Intl-SUX Sioux City Sioux Gateway

5h 54m1 stop Denver Intl

6:45 pm - 11:15 pmSUX Sioux City Sioux Gateway-SEA Seattle/Tacoma Intl

6h 30m1 stop Denver Intl

$344United Airlines

Fri, Nov 13 - Thu, Nov 19

1:16 pm - 11:43 pmSEA Seattle/Tacoma Intl-SUX Sioux City Sioux Gateway

8h 27m2 stops San Francisco Denver Intl

6:45 pm - 11:15 pmSUX Sioux City Sioux Gateway-SEA Seattle/Tacoma Intl

6h 30m1 stop Denver Intl

$422United Airlines

Wed, Jan 6 - Sat, Jan 9

4:00 pm - 11:44 pmSEA Seattle/Tacoma Intl-SUX Sioux City Sioux Gateway

5h 44m1 stop Denver Intl

6:46 pm - 9:49 amSUX Sioux City Sioux Gateway-SEA Seattle/Tacoma Intl

17h 03m1 stop Denver Intl

$451United Airlines

Fri, Jan 8 - Tue, Jan 12

1:47 pm - 11:44 pmGEG Spokane-SUX Sioux City Sioux Gateway

7h 57m1 stop Denver Intl

5:04 am - 5:25 pmSUX Sioux City Sioux Gateway-GEG Spokane

14h 21m2 stops Chicago O'Hare Intl Denver Intl

$454United Airlines

Wed, Jan 6 - Sat, Jan 9

4:00 pm - 11:44 pmSEA Seattle/Tacoma Intl-SUX Sioux City Sioux Gateway

5h 44m1 stop Denver Intl

6:46 pm - 9:49 amSUX Sioux City Sioux Gateway-SEA Seattle/Tacoma Intl

17h 03m1 stop Denver Intl

$455United Airlines

Fri, Jan 8 - Tue, Jan 12

12:23 pm - 11:44 pmGEG Spokane-SUX Sioux City Sioux Gateway

9h 21m2 stops San Francisco Denver Intl

5:04 am - 5:25 pmSUX Sioux City Sioux Gateway-GEG Spokane

14h 21m2 stops Chicago O'Hare Intl Denver Intl

$459United Airlines

Wed, Jan 6 - Sat, Jan 9

9:01 am - 11:44 pmSEA Seattle/Tacoma Intl-SUX Sioux City Sioux Gateway

12h 43m2 stops San Francisco Denver Intl

6:46 pm - 9:49 amSUX Sioux City Sioux Gateway-SEA Seattle/Tacoma Intl

17h 03m1 stop Denver Intl

$461United Airlines

Wed, Jan 6 - Sat, Jan 9

9:01 am - 11:44 pmSEA Seattle/Tacoma Intl-SUX Sioux City Sioux Gateway

12h 43m2 stops San Francisco Denver Intl

6:46 pm - 9:49 amSUX Sioux City Sioux Gateway-SEA Seattle/Tacoma Intl

17h 03m1 stop Denver Intl

$465United Airlines

Wed, Jan 6 - Sat, Jan 9

9:01 am - 11:44 pmSEA Seattle/Tacoma Intl-SUX Sioux City Sioux Gateway

12h 43m2 stops San Francisco Denver Intl

6:46 pm - 12:54 pmSUX Sioux City Sioux Gateway-SEA Seattle/Tacoma Intl

20h 08m2 stops Denver Intl San Francisco

$496United Airlines

Useful Info

Low season	July
High season	June

Best time to beat the crowds with an average 5% drop in price.

Most popular time to fly and prices are also 26% lower on average.

How does KAYAK find such low prices on flights from Washington to Sioux City?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Sioux City.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Sioux City?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux City from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Sioux City?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux City with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Sioux City?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux City from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.