Cheap flights from St. Louis to Harlingen, Texas from $145
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Harlingen, Texas departing on 4/16. 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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American Airlines flights from St. Louis to Harlingen, Texas
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How to get the cheapest flight ticket from St. Louis to Harlingen, Texas
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 Harlingen, Texas?
The month of May is, on average, the cheapest month to fly to Harlingen, Texas from St. Louis, with most prices found around $197. If you are unable to visit Harlingen, Texas during the month of May, then departing from St. Louis during the month April is also very affordable. Most momondo users find prices during this month for around $280.
What is the cheapest day to depart on your flight to Harlingen, Texas?
The cheapest day to depart on your flight to Harlingen, Texas is on a Monday when prices can be found for as low as $290. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Harlingen, Texas for around $421.
What is the cheapest airline that flies from Lambert-St Louis to Harlingen Valley Intl?
American Airlines and Southwest are the most popular carriers operating from Lambert-St Louis to Harlingen Valley Intl
What airlines fly to Harlingen, Texas?
American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Harlingen, Texas from St. Louis according to our data. American Airlines is the first choice among our users, with 66% of people opting to fly with this airline when traveling to Harlingen, Texas. Keep in mind that there are 4 different airlines that fly to Harlingen, Texas on a routine basis, so you have a few additional options to choose from.
When to book flights from St. Louis to Harlingen, Texas
Cheap St. Louis to Harlingen, Texas (STL to HRL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Harlingen, Texas
Best Price Found | $145 |
|---|---|
Fastest flight time | 4h 25m |
Direct flights | None |
Airports in Harlingen, Texas | 1 airport |
How far is Lambert-St Louis to Harlingen Valley Intl by plane?
There are 962.6 mi between Lambert-St Louis and Harlingen Valley Intl. In terms of flight time, this usually takes a little over 4h 25m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Harlingen Valley Intl Airport?
Prices for flights from Lambert-St Louis Airport to Harlingen Valley Intl Airport were last updated today.
How many operators does momondo search for flights from Lambert-St Louis Airport to Harlingen Valley Intl Airport?
There are 4 operators available for flights from Lambert-St Louis Airport to Harlingen Valley Intl Airport as of April 2025.
How old do you have to be to fly from Lambert-St Louis Airport to Harlingen Valley Intl 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 Lambert-St Louis Airport to Harlingen Valley Intl Airport.
What documentation or ID do you need to fly to Harlingen Valley Intl Airport?
The travel and health documents required for your trip to Harlingen Valley Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Harlingen Valley Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Harlingen, Texas?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Harlingen, Texas is American Airlines (54% of total bookings). The next most popular airlines are Southwest (23%), United Airlines (12%), and Delta (10%).
Best airlines flying from St. Louis to Harlingen, Texas
Compare and see reviews for airlines that fly from St. Louis to Harlingen, Texas with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $196 | Free Cancellation | Rating 8.0 4,276 reviews | |||
| PriceFrom $197 | Free Cancellation | Rating 7.4 8,615 reviews | |||
| PriceFrom $208 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $329 | Free Cancellation | Rating 8.0 7,899 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Harlingen?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Harlingen. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from St. Louis to Harlingen with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for St. Louis to Harlingen flights to just show those with flexible booking policies.
How can momondo help me find flights from St. Louis to Harlingen?
Once you have performed a search for St. Louis to Harlingen flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from St. Louis to Harlingen right now. Can momondo alert me if prices change?
If you are not ready to book a flight from St. Louis to Harlingen now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Harlingen and let you know when they change.