$661 Find Cheap Flights from Harlingen to Europe

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harlingen to Europe departing on 3/18. 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

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Book Cheap Harlingen to Europe Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Harlingen to Europe 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 Harlingen to Europe

Wed, Mar 18 - Tue, Mar 24
United Airlines Logo
7:00 am - 10:15 am
HRL
-
LHR
22h 15m
1 stop
United Airlines Logo
12:05 pm - 9:56 pm
LHR
-
HRL
14h 51m
1 stop
$661United Airlines
Wed, Mar 18 - Tue, Mar 24
United Airlines Logo
9:20 am - 10:15 am
HRL
-
LHR
19h 55m
1 stop
United Airlines Logo
10:00 am - 7:56 pm
LHR
-
HRL
14h 56m
1 stop
$662United Airlines
Wed, Mar 18 - Tue, Mar 24
United Airlines Logo
12:10 pm - 10:50 am
HRL
-
LHR
17h 40m
2 stops
United Airlines Logo
7:25 am - 9:56 pm
LHR
-
HRL
19h 31m
2 stops
$666United Airlines
Mon, Mar 9 - Mon, Mar 16
Delta Logo
4:04 pm - 6:55 am
HRL
-
FCO
32h 51m
2 stops
Delta Logo
8:20 am - 3:09 pm
FCO
-
HRL
36h 49m
2 stops
$724Delta
Mon, May 18 - Wed, May 27
Air Canada Logo
7:00 am - 6:35 am
HRL
-
LHR
41h 35m
2 stops
Air Canada Logo
12:05 pm - 3:59 pm
LHR
-
HRL
33h 54m
2 stops
$767Air Canada
Wed, Mar 25 - Mon, Mar 30
American Airlines Logo
2:45 pm - 9:05 am
HRL
-
CDG
12h 20m
1 stop
American Airlines Logo
10:35 am - 10:53 pm
CDG
-
HRL
19h 18m
2 stops
$831American Airlines
Wed, Mar 25 - Mon, Mar 30
Iberia Logo
10:42 am - 9:05 am
HRL
-
CDG
16h 23m
1 stop
Iberia Logo
10:00 am - 10:12 am
CDG
-
HRL
31h 12m
1 stop
$839Iberia
Fri, Apr 10 - Sat, Apr 18
Iberia Logo
7:53 pm - 10:00 am
HRL
-
CDG
31h 07m
1 stop
Iberia Logo
6:50 am - 2:17 pm
CDG
-
HRL
38h 27m
2 stops
$845Iberia
Thu, Apr 2 - Thu, Apr 9
American Airlines Logo
8:06 pm - 10:45 pm
HRL
-
FCO
19h 39m
2 stops
American Airlines Logo
1:10 pm - 10:17 am
FCO
-
HRL
28h 07m
1 stop
$860American Airlines
Wed, Mar 25 - Mon, Mar 30
Air Canada Logo
7:00 am - 9:30 am
HRL
-
CDG
20h 30m
3 stops
Air Canada Logo
9:30 am - 9:59 pm
CDG
-
HRL
19h 29m
3 stops
$873Air Canada
Booking Insights

KAYAK's insights & trends for Harlingen to Europe flights

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

Which airlines provide the cheapest flights from Harlingen to Europe?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Harlingen to Europe were found on United Airlines ($661) and Delta ($724).

Good to know

Cheapest flight$661
Most popular time to fly with an average 68% increase in price.
Flight from Harlingen to London

FAQs - booking Europe flights

  • How does KAYAK find such low prices on flights from Harlingen to Europe?

    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 Harlingen to Europe.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Harlingen to Europe?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Harlingen to Europe 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 Harlingen to Europe?

    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 from Harlingen to Europe with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Harlingen to Europe?

    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 from Harlingen to Europe 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 Harlingen to Europe

 
Need help choosing which airline to fly with from Harlingen to Europe? 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.
7.4
United AirlinesOverall score based on 9312 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
8.1Crew
Airline reviews

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

2.0 MediocreSaachi, Feb 2026
IAH - NRT
Read more United Airlines reviews

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

Delayed, toilets did not flush, pilot parked to far away from Gate

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

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.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

We lost a day of our vacation because AA did not get the plane to the gate on time. Even though the gate attendant was very clear that it was not weather related, AA would do nothing because there was some snow that day. They basically said the gate attendant was wrong even though she was on the front line of the situation and they were not.

The seats are too uncomfortable for anyone over 5ft 8in. I'm 5'10" with a back and hip issue and I was in pai for the full duration of the flight.

Flight was on time and the meal and service were good.

The accessible bathroom should be visible to people in Economy class.

Lexus in first class was absolutely amazing! Beat flight attendant i’ve ever seen.

the plane was so hot!! the air-conditioning was barely blowing. The flight was delayed, and we had to sit on the hot plane before take off for an extended amount of time, waiting on international passengers. Would not have been so bad if it was not so hot. They said it would get better after take off, but it did not.

did not have enough meal for first class passengers so offer us snack

Old equipment, needs upgrade and seat comfort. Internet didn't work 75% or the time.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Everything you need to know for your flight to Europe

Information on your arrival and departure airports