RDM - STL

$270 Find Cheap Flights from Redmond to St. Louis - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Redmond to St. Louis departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$333
Typical prices: $282-$460
Delta
Wed 9/23Wed 9/30
RDM - STL • 2 stops
Cheapest one-way
$270
Multiple Airlines
Mon 8/10
RDM - STL • 1 stop
Top airlines
Cheapest • from $333 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Redmond and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $472 (round-trip)
Shortest trip • 5h 40m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Redmond to St. Louis (RDM-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Redmond to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Redmond to St. Louis

Wed, Sep 23 - Wed, Sep 30
Delta Logo
7:24 pm - 8:40 am
RDM
-
STL
11h 16m
2 stops
Delta Logo
2:25 pm - 11:08 pm
STL
-
RDM
10h 43m
2 stops
$333Delta
Fri, Oct 16 - Mon, Oct 19
Delta Logo
6:10 am - 5:44 pm
RDM
-
STL
9h 34m
2 stops
Delta Logo
7:45 am - 6:50 pm
STL
-
RDM
13h 05m
2 stops
$353Delta
Wed, Sep 23 - Wed, Sep 30
Delta Logo
7:24 pm - 10:31 am
RDM
-
STL
13h 07m
2 stops
Delta Logo
11:21 am - 6:44 pm
STL
-
RDM
9h 23m
2 stops
$364Delta
Thu, Oct 8 - Sat, Oct 10
Delta Logo
7:34 pm - 8:53 am
RDM
-
STL
11h 19m
2 stops
Delta Logo
7:45 am - 6:50 pm
STL
-
RDM
13h 05m
2 stops
$374Delta
Sat, Oct 24 - Tue, Oct 27
Alaska Airlines Logo
1:32 pm - 11:59 pm
RDM
-
STL
8h 27m
1 stop
Alaska Airlines Logo
7:02 am - 12:38 pm
STL
-
RDM
7h 36m
1 stop
$435Alaska Airlines
Wed, Sep 23 - Wed, Sep 30
Alaska Airlines Logo
4:02 pm - 5:10 pm
RDM
-
STL
23h 08m
1 stop
Alaska Airlines Logo
6:29 am - 12:40 pm
STL
-
RDM
8h 11m
1 stop
$435Alaska Airlines
Wed, Sep 23 - Wed, Sep 30
Alaska Airlines Logo
1:37 pm - 2:21 pm
RDM
-
STL
22h 44m
1 stop
Alaska Airlines Logo
6:29 am - 12:40 pm
STL
-
RDM
8h 11m
1 stop
$435Alaska Airlines
Thu, Oct 8 - Sat, Oct 10
United Airlines Logo
7:20 am - 9:21 pm
RDM
-
STL
12h 01m
2 stops
United Airlines Logo
7:08 am - 11:48 am
STL
-
RDM
6h 40m
1 stop
$486United Airlines
Thu, Oct 8 - Sat, Oct 10
United Airlines Logo
7:20 am - 8:36 pm
RDM
-
STL
11h 16m
2 stops
United Airlines Logo
7:08 am - 11:48 am
STL
-
RDM
6h 40m
1 stop
$486United Airlines
Thu, Oct 8 - Sat, Oct 10
United Airlines Logo
7:20 am - 8:36 pm
RDM
-
STL
11h 16m
2 stops
United Airlines Logo
5:10 am - 11:48 am
STL
-
RDM
8h 38m
2 stops
$491United Airlines
Booking Insights

KAYAK's insights & trends for Redmond to St. Louis flights

Get data-powered insights and trends into flights from Redmond to St. Louis to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Redmond to St. Louis?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Redmond to St. Louis departing in September.

Flight prices are below average for this route right now.

Flights to St. Louis from Redmond usually cost between $492 and $632 in September.
The lowest price found in the past 5 days was $333 on Delta (Sep 23-Sep 30).

What is the cheapest month to fly from Redmond to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Redmond to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Redmond to St. Louis is July, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $873 and $864 respectively.

Good to know

Low season

November

Cheapest flight

$270
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 37% lower on average.
Flight from Redmond to St. Louis

When to book flights from Redmond to St. Louis

Are your dates flexible? Find out the best times to travel from Redmond to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Redmond to St. Louis

  • What is the cheapest flight from Redmond to St. Louis?

    In the last 5 days, the lowest price for a flight from Redmond to St. Louis was $270 for a one-way ticket and $333 for a round-trip.

  • Do I need a passport to fly between Redmond and St. Louis?

    A passport is not required to fly from Redmond to St. Louis.

  • Which aircraft models fly most regularly from Redmond to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Redmond to St. Louis?

    oneworld, and Star Alliance are the airline alliances operating flights between Redmond and St. Louis, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Redmond to St. Louis, Alaska Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Redmond to St. Louis are Alaska Airlines and United Airlines. With an average price for the route of $586 and an overall rating of 7.9, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $564 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Redmond to St. Louis?

    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 Redmond to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Redmond to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Redmond 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 Redmond to St. Louis?

    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 St. Louis with an airline and back to Redmond with another airline. Booking your flights between Redmond and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Redmond to St. Louis?

    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 St. Louis from Redmond up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Redmond to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Redmond to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Redmond to St. Louis? 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.
7.9
Alaska AirlinesOverall score based on 12758 reviews
7.0Entertainment
8.1Boarding
7.8Comfort
8.5Crew
7.0Food
Airline reviews

Flight was delayed by almost 2 hours due to air control and no available plane. We didnt land until after 1:30am. And it changed my whole vacation, no sleep the 1st night

2.0 MediocreKerry, Aug 2026
LAX - STL
Read more Alaska Airlines reviews

Flight was delayed by almost 2 hours due to air control and no available plane. We didnt land until after 1:30am. And it changed my whole vacation, no sleep the 1st night

When I checked in with full service, requesting a wheelchair, as I had asked for ahead of time, the customer service agent said “wait over there, nothing more. I waited in the designated space for about 40 minutes before learning from another passenger that I needed to check in again at a specific assistance desk. I was early, so I made it on time to my flight. Your agent should not assume I knew anything, which I didn’t. This was all new, in a recently remodeled space. New to me, anyway.

SeaTac airport hottible No signage to tell you where to go Took one and half hour to make to gate after being dropped at airport HORRIBLE LOTS OF yelling at patrons EXTREMELY HORRIBLE AND SCARY!

Late boarding, but the flight was smooth and the crew was accommodating.

The flight was delayed almost an hour. No wifi on flight.

Flight was OK, landing not good, boarding was ridiculous. Flight was to load at gate n11 25 minutes before boarding time it was changed to s5 which is 3 tram connections on the other side of the airport, I'm handicapped and even getting a sky cap took 10 minutes needless to say just made it to boarding only because it was delayed. I did learn a valuable lesson don't show up for flight 2 hours early.

Leg room was quite OK. Customer service from the crew was spot on.

The Alaska airlines flight attendants were great. Boarding went smoothly. The cabin was comfortable intitially, and seemed stuffy later. I tried to open the vents but they were not very powerful to cool our seating down. Ride was smooth. They left the gate early and arrived early. The pubic address used by attendants was scratchy. No, it wasn’t their voices it was their system.

I was trying to switch from a middle seat to an aisle seat which usually I am able to. They did not want to switch seats for me and we're trying to charge me $80. I was sitting next to a bunch of kids that were really loud. Thankfully, I was seating between two very kind people.

service was good. flight attendants were friendly. flight was smooth.

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

The flight was delayed from take off because only one runway was operational in San Francisco.

Airport terminal was outdated, flight was on a small jet with no wifi

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

We boarded and buckled and then deplaned due to no pilot. Had to wait over 3 hours for a new pilot. Not weather related, just poor management.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

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

Information on your arrival and departure airports