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$176+ Cheap flights from Redmond to St. Louis (RDM - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
RDM — STL
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap flight deals from Redmond to St. Louis

Cheapest flights from Redmond to St. Louis
Explore the most affordable flight options available from Redmond to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2026.

This Alaska Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:00 am
RDM
-
STL
1 stop7h 50m
Alaska Airlines
Sat 6/137:30 pm
STL
-
RDM
1 stop6h 53m
Alaska Airlines
Deal found 1/20$389
This Alaska Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:38 pm
RDM
-
STL
1 stop22h 48m
Alaska Airlines
Mon 10/193:24 pm
STL
-
RDM
1 stop23h 21m
Alaska Airlines
Deal found 1/21$435
This Expedia deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1512:54 pm
RDM
-
STL
1 stop26h 12m
Alaska Airlines
Sun 5/177:56 pm
STL
-
RDM
1 stop6h 20m
Alaska Airlines
Deal found 1/20$465
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/203:03 pm
RDM
-
STL
1 stop6h 56m
American Airlines
Fri 1/237:43 am
STL
-
RDM
1 stop7h 54m
American Airlines
Deal found 1/20$541
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/206:34 am
RDM
-
STL
1 stop7h 03m
United Airlines
Fri 1/232:45 pm
STL
-
RDM
2 stops10h 00m
United Airlines
Deal found 1/20$546
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/246:34 am
RDM
-
STL
1 stop7h 03m
United Airlines
Tue 1/274:15 pm
STL
-
RDM
1 stop7h 06m
United Airlines
Deal found 1/20$581

Find flight deals from Redmond to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Redmond (RDM) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$389
(Alaska Airlines)

One-way from

$176
(United Airlines)

Popular in

March

Cheapest in

January

Average price

$350
Provider with most accurate pricing for Bend/Redmond-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bend/Redmond-Lambert-St Louis flights.
Search Deals
From Bend/Redmond to Lambert-St Louis
Search Deals
One-way flight from Bend/Redmond to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Redmond to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
Use the filters below to find and compare flights from Redmond to St. Louis that are best for you.

Fly from

Redmond

Fly to

St. Louis

Route

Depart

Return

Price

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Sat 6/6

6:00 am-3:50 pm

1 stop7h 50m

Lambert-St Louis

Sat 6/13

6:20 pm-12:32 pm

2 stops20h 12m

$437

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Fri 5/15

12:54 pm-5:06 pm

1 stop26h 12m

Lambert-St Louis

Sun 5/17

7:56 pm-12:16 am

1 stop6h 20m

$465

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Fri 5/15

7:27 pm-5:06 pm

2 stops19h 39m

$209

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Mon 6/22

7:25 pm-5:13 pm

1 stop19h 48m

$235

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Fri 5/15

12:15 pm-3:50 pm

3 stops25h 35m

$401

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Redmond 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.

Cheapflights Insights

Everything you need to know about your flight from Redmond to St. Louis

What is the cheapest month to book a flight from Redmond to St. Louis?

Currently, September is the cheapest month in which you can book a flight from Redmond to St. Louis (average of $222). Flying from Redmond to St. Louis in December is currently the most expensive (average of $610). 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.

How much does it cost to fly round-trip from Redmond to St. Louis?

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated January 21, 2026.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Redmond to St. Louis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,768 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,768 reviews
Alaska Airlines
8.0
Very good
11,768 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,086 reviews
Alaska Airlines
8.0
Very good
11,768 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,190 reviews
Alaska Airlines
8.0
Very good
11,768 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

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

  • How long is the flight from Redmond to St. Louis?

    Alaska Airlines can get you from Redmond to St. Louis in just under 7h 50m. Your travel time can differ by up to . There are 1626 mi between Redmond and St. Louis.

  • What are the cheapest airlines flying from Redmond to St. Louis round-trip?

    Delta, at $255, was found to be the cheapest airline from Redmond to St. Louis.Alternate airlines to your destination round-trip include United Airlines and Alaska Airlines. These flights start at 46% lower than the current average price 3 months from now.

  • Can I find deals for flights from Redmond to St. Louis that include hotel bookings?

    Yes. In addition to deals on Redmond to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Redmond to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Redmond to St. Louis.

  • Can I find deals for business class flights from Redmond to St. Louis?

    Yes. Cheapflights offers flight deals from Redmond to St. Louis 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 Redmond to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Redmond to St. Louis (average of $222). Flying from Redmond to St. Louis in December is currently the most expensive (average of $610). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Redmond to St. Louis

Discover the top 3 airlines that operate flights from Redmond to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$255Average$412FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$320Average$456FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$334Average$535FlexibilityNo cancel feeOn-time75%

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