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$157+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
RDM — STL
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$300
(Delta)

One-way from

$157
(Delta)

Popular in

December

Cheapest in

October

Average price

$535
From Bend/Redmond to Lambert-St Louis
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One-way flight from Bend/Redmond to Lambert-St Louis
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Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:25 pmRDM - STL
2 stops11h 19mDelta
Wed 12/310:45 amSTL - RDM
2 stops13h 59mDelta
Deal found 8/13$300
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:25 pmRDM - STL
2 stops11h 19mDelta
Thu 12/47:30 amSTL - RDM
1 stop6h 26mDelta
Deal found 8/13$365
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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.
Thu 9/255:54 amRDM - STL
1 stop16h 05mAlaska Airlines
Mon 9/293:35 pmSTL - RDM
1 stop21h 44mAlaska Airlines
Deal found 8/14$375
This Hawaiian Airlines deal was found by Cheapflights users on 8/13. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/305:54 amRDM - STL
1 stop6h 45mHawaiian Airlines
Sat 9/66:00 amSTL - RDM
1 stop7h 19mHawaiian Airlines
Deal found 8/13$382
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 9/231:31 pmRDM - STL
1 stop26h 03mAlaska Airlines
Sat 9/276:00 amSTL - RDM
1 stop8h 37mAlaska Airlines
Deal found 8/12$385
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/305:05 amRDM - STL
1 stop5h 38mUnited Airlines
Sat 9/61:10 pmSTL - RDM
2 stops11h 16mUnited Airlines
Deal found 8/13$389
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 8/305:54 amRDM - STL
1 stop6h 45mAlaska Airlines
Fri 9/56:30 pmSTL - RDM
1 stop18h 49mAlaska Airlines
Deal found 8/13$391
This Hawaiian Airlines deal was found by Cheapflights users on 8/13. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/251:31 pmRDM - STL
1 stop8h 28mHawaiian Airlines
Mon 9/296:00 amSTL - RDM
1 stop7h 19mHawaiian Airlines
Deal found 8/13$394
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/267:30 pmRDM - STL
2 stops11h 07mDelta
Mon 9/293:36 pmSTL - RDM
2 stops10h 15mDelta
Deal found 8/14$396

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 August 14, 2025.
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

Mon 11/24

7:25 pm-8:44 am

2 stops11h 19m

Lambert-St Louis

Wed 12/3

10:45 am-10:44 pm

2 stops13h 59m

$300

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Tue 11/25

7:25 pm-8:44 am

2 stops11h 19m

Lambert-St Louis

Thu 12/4

6:45 am-6:45 pm

2 stops14h 00m

$300

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Thu 9/25

5:54 am-11:59 pm

1 stop16h 05m

Lambert-St Louis

Mon 9/29

3:35 pm-11:19 am

1 stop21h 44m

$375

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Sat 8/30

5:54 am-2:39 pm

1 stop6h 45m

Lambert-St Louis

Sat 9/6

6:00 am-11:19 am

1 stop7h 19m

$382

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Sun 8/31

5:54 am-2:39 pm

1 stop6h 45m

Lambert-St Louis

Sat 9/6

6:00 am-11:19 am

1 stop7h 19m

$382

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Tue 9/23

1:31 pm-5:34 pm

1 stop26h 03m

Lambert-St Louis

Sat 9/27

6:00 am-12:37 pm

1 stop8h 37m

$385

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Sat 8/30

5:05 am-12:43 pm

1 stop5h 38m

Lambert-St Louis

Sat 9/6

1:10 pm-10:26 pm

2 stops11h 16m

$389

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Tue 9/2

7:30 pm-8:36 am

2 stops11h 06m

Lambert-St Louis

Wed 9/10

2:25 pm-10:35 pm

2 stops10h 10m

$389

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Fri 9/26

7:30 pm-8:37 am

2 stops11h 07m

Lambert-St Louis

Mon 9/29

7:00 pm-11:51 pm

1 stop6h 51m

$391

RedmondSt. Louis

RDM - STL

RDMSTL

Bend/Redmond

Wed 10/1

7:30 pm-8:37 am

2 stops11h 07m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 20 results
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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, August is the cheapest month in which you can book a flight from Redmond to St. Louis (average of $311). Flying from Redmond to St. Louis in March is currently the most expensive (average of $356). 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 RDM to STL?

Find hourly flight availability from Redmond to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

One of the essential ways to save on airfare from Redmond to St. Louis is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 22% on airfare.

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 August 14, 2025.
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
10,000 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

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.

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

    Delta, at $228, was found to be the cheapest airline from Redmond to St. Louis.Alternate airlines to your destination round-trip include Alaska Airlines and United Airlines. These flights start at 54% 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, August is the cheapest month in which you can book a flight from Redmond to St. Louis (average of $311). Flying from Redmond to St. Louis in March is currently the most expensive (average of $356). 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
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$516FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$247Average$439FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$316Average$562FlexibilityNo cancel feeOn-time69%

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