Cheap flights from Alaska to St. Louis from $199
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Alaska to St. Louis departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Alaska to St. Louis
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Alaska Airlines flights from Alaska to St. Louis
Our best Alaska Airlines deals on Alaska to St. Louis flight tickets
Delta flights from Alaska to St. Louis
Our best Delta deals on Alaska to St. Louis flight tickets
See travel insights to St. Louis from
How to get the cheapest flight ticket from Alaska to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to St. Louis?
In general, January is the cheapest month to fly from Alaska to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $468. The month of April is another great option to travel to St. Louis, with average flight prices from Alaska averaging around $499.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Sunday when prices can be found for as low as $678. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $970. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from Alaska in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $550 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $736 per ticket.
Can stopping save me money on Alaska to St. Louis flights?
You could potentially save up to 18% on your flight if you consider stops on a Alaska to St. Louis flight.
What is the cheapest airline that flies from Alaska to Lambert-St Louis?
Delta, Alaska Airlines, and United Airlines are the most popular carriers operating from Alaska to Lambert-St Louis
What airlines fly to St. Louis?
Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to St. Louis from Alaska according to our data. Alaska Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
Cheap Alaska to St. Louis flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Alaska to St. Louis
When did momondo last update prices for flights from Alaska to Lambert-St Louis Airport?
Prices for flights from Alaska to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Alaska to Lambert-St Louis Airport?
As of June 2025, there are 4 operators available to choose from for flights from Alaska to Lambert-St Louis Airport.
How old do you have to be to fly from Alaska to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Alaska to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Alaska to St. Louis
Compare and see reviews for airlines that fly from Alaska to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $499 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $499 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $499 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $519 | Free Cancellation | Rating 8.0 10,000 reviews |
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Alaska to St. Louis?
Finding the right flight to St. Louis from Alaska is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.
Can I find flights from Alaska to St. Louis with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to St. Louis from Alaska with this policy.
How can momondo help me find flights from Alaska to St. Louis?
Once all potential Alaska to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Alaska to St. Louis right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Alaska to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.