Cheap flights from Maine to St. Louis from $96
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maine to St. Louis departing on 5/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Maine 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, February is the cheapest month to fly from Maine to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $250. The month of January is another great option to travel to St. Louis, with average flight prices from Maine averaging around $371.
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 Tuesday when prices can be found for as low as $443. 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 Monday because tickets tend to average around $638. 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 Maine in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $441 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $609 per ticket.
How far in advance should I book a flight to St. Louis?
You are more likely to see cheaper flights to St. Louis from Maine when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $428 when searching 25 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Maine for as low as $249 on momondo.
What is the cheapest airline that flies from Maine to Lambert-St Louis?
Frontier, Spirit Airlines, and American Airlines are the most popular carriers operating from Maine to Lambert-St Louis
What airlines fly to St. Louis?
American Airlines, Delta and United Airlines are the top three most popular airlines that fly to St. Louis from Maine according to our data. American Airlines is the first choice among our users, with 63% 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.
How many flights depart from Maine to St. Louis on average per week?
The number of flights available between Maine and St. Louis is 22 per week as of May 2025. The most frequent departure day is Mon, with 23% of weekly flights leaving on this day.
How long does it take to fly to St. Louis?
Flight times from Maine to St. Louis vary, but if you’re flying out of Portland and flying into St. Louis (one of the most popular routes), then the duration is 6h on average. Another popular route from Maine to St. Louis is flying from Bangor to St. Louis, which will take roughly 6h 19m. Keep in mind that layovers or delays could extend your travel time.
Cheap Maine to St. Louis flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Maine to St. Louis
When did momondo last update prices for flights from Maine to Lambert-St Louis Airport?
Prices for flights from Maine to Lambert-St Louis Airport are updated daily.
How many operators does momondo search for flights from Maine to Lambert-St Louis Airport?
There are 6 operators available for flights from Maine to Lambert-St Louis Airport as of May 2025.
How old do you have to be to fly from Maine to Lambert-St Louis Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Maine to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Maine to St. Louis
Compare and see reviews for airlines that fly from Maine to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $241 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $273 | Free Cancellation | Rating 8.0 7,942 reviews | |||
| PriceFrom $341 | Free Cancellation | Rating 7.4 8,708 reviews | |||
| PriceFrom $351 | Free Cancellation | Rating 8.0 4,292 reviews |
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Why should I use momondo to find a flight deal from Maine to St. Louis?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Maine to St. Louis. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Maine to St. Louis with flexible booking policies on momondo?
Flights from Maine to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Maine to St. Louis?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Maine.
I’m not ready to book a flight from Maine to St. Louis right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Maine to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.