Cheap flights to Mercer County

View €358 flight on Thu, 1 Jan 2026Opens in a new window

Popular airlines to Mercer County

  • Delta

    Delta

  • United

    United

  • American Airlines

    American Airlines

  • KLM

    KLM

  • Virgin Atlantic

    Virgin Atlantic

  • Air France

    Air France

  • Aeromexico

    Aeromexico

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Cheap round-trip flights to Mercer County

Prices were available within the past 7 days and start at €358 for one-way flights and €401 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€401 Return, found 1 day ago
€401
Return
found 1 day ago
Select American Airlines flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €401 found 1 day ago
American Airlines
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€469 Return, found 1 day ago
€469
Return
found 1 day ago
Select American Airlines flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €469 found 1 day ago
United
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€497 Return, found 1 day ago
€497
Return
found 1 day ago
Select United flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €497 found 1 day ago
United
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€540 Return, found 1 day ago
€540
Return
found 1 day ago
Select United flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €540 found 1 day ago
American Airlines
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€554 Return, found 1 day ago
€554
Return
found 1 day ago
Select American Airlines flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €554 found 1 day ago
American Airlines
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€567 Return, found 1 day ago
€567
Return
found 1 day ago
Select American Airlines flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €567 found 1 day ago
United
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€570 Return, found 1 day ago
€570
Return
found 1 day ago
Select United flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €570 found 1 day ago
United
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€578 Return, found 1 day ago
€578
Return
found 1 day ago
Select United flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €578 found 1 day ago
United
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€612 Return, found 1 day ago
€612
Return
found 1 day ago
Select United flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €612 found 1 day ago
United
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€625 Return, found 1 day ago
€625
Return
found 1 day ago
Select United flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €625 found 1 day ago
United
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€640 Return, found 1 day ago
€640
Return
found 1 day ago
Select United flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €640 found 1 day ago
United
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€641 Return, found 1 day ago
€641
Return
found 1 day ago
Select United flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €641 found 1 day ago
United
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€664 Return, found 1 day ago
€664
Return
found 1 day ago
Select United flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €664 found 1 day ago
American Airlines
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€664 Return, found 1 day ago
€664
Return
found 1 day ago
Select American Airlines flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €664 found 1 day ago
Delta
Thu, 1 Jan - Thu, 8 Jan
HRL
Harlingen
BIS
Bismarck
€750 Return, found 1 day ago
€750
Return
found 1 day ago
Select Delta flight, departing Thu, 1 Jan from Harlingen to Bismarck, returning Thu, 8 Jan, priced at €750 found 1 day ago

About Mercer County

Expedia offers flights to Mercer County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Mercer County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Frequently asked questions

How do I find cheap flights to Mercer County that have flexible change policies?
Search for your affordable flights to Mercer County, then mark the "No change fee" box underneath the "Flexible change policies" heading. It really is that easy. We know that plans can change and flexibility matters, so book with confidence with Expedia.
Which airlines fly to Mercer County?
With a good selection of airlines that fly into or near Mercer County, the choice is all yours:

  • Delta Air Lines - 117 flights to or near Mercer County each month, including 117 flights to Bismarck Municipal Airport (BIS) per month.
  • United Airlines - 86 flights to or near Mercer County each month, including 86 flights to Bismarck Municipal Airport (BIS) per month.
  • American Airlines - 60 flights to or near Mercer County each month, including 60 flights to Bismarck Municipal Airport (BIS) per month.

How can I find cheap tickets to Mercer County?
One of the easiest ways to get your hands on cheap tickets to Mercer County is to be flexible with your dates. Search for your flights, then click "flexible dates" at the top of your results. It'll reveal the cheapest prices for nearby days. The lowest price for a flight to Mercer County in the last seven days was €401. Booking well ahead of time will usually help you pick up an even better deal.
How much is a flight to Mercer County?
In the last seven days, round-trip tickets to Mercer County sold for as low as €401 and reached a maximum of €832. For one-way fares taking off from Harlingen (HRL), the lowest amount paid during this same period was just €358.
What are the most popular airports to fly into in Mercer County?
Start organising your Mercer County getaway by securing a seat on one of the 294 flights per month to Bismarck Municipal Airport (BIS). This is the region's primary gateway.
How much is a plane ticket to Mercer County?
In the last seven days, plane tickets to Mercer County cost between €401 and €832. Prices depend on multiple things, particularly the departure time, airline, cabin class and how early you make your booking.
What is the best time to go to Mercer County?
A fantastic time to check out Mercer County, as well as the top city of Beulah, is over the bustling months of May, June and July. Summer in this part of the world starts June 20, and you can expect average temperatures of between 16ºC and 27ºC if you go then. This warmer weather is perfect for strolling around the city sights.
What months are the cheapest to book a flight to Mercer County?
The cheapest month to find a fabulous deal to Mercer County is February, whereas prices are at their highest in December. Keep clear of this month if you're looking to save money.
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