Cheap flights to Mercer County

View €422 flight on Sun, 17 May 2026Opens in a new window

Popular airlines to Mercer County

  • American Airlines

  • Delta

  • United

  • Alaska Airlines

  • Lufthansa

  • KLM

  • Air France

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 15% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Mercer County

Prices were available within the past 7 days and start at €422 for one-way flights and €360 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, 17 May - Sun, 24 May
BWI
Baltimore
MLI
Moline
€360 Return, found 20 hours ago
€360
Return
found 20 hours ago
Select American Airlines flight, departing Sun, 17 May from Baltimore to Moline, returning Sun, 24 May, priced at €360 found 20 hours ago
American Airlines
Sun, 17 May - Sun, 24 May
BWI
Baltimore
MLI
Moline
€404 Return, found 20 hours ago
€404
Return
found 20 hours ago
Select American Airlines flight, departing Sun, 17 May from Baltimore to Moline, returning Sun, 24 May, priced at €404 found 20 hours ago
United
Sun, 17 May - Sun, 24 May
BWI
Baltimore
MLI
Moline
€420 Return, found 20 hours ago
€420
Return
found 20 hours ago
Select United flight, departing Sun, 17 May from Baltimore to Moline, returning Sun, 24 May, priced at €420 found 20 hours ago
American Airlines
Sun, 17 May - Sun, 24 May
BWI
Baltimore
MLI
Moline
€422 Return, found 20 hours ago
€422
Return
found 20 hours ago
Select American Airlines flight, departing Sun, 17 May from Baltimore to Moline, returning Sun, 24 May, priced at €422 found 20 hours ago
American Airlines
Sun, 17 May - Sun, 24 May
BWI
Baltimore
MLI
Moline
€428 Return, found 20 hours ago
€428
Return
found 20 hours ago
Select American Airlines flight, departing Sun, 17 May from Baltimore to Moline, returning Sun, 24 May, priced at €428 found 20 hours ago
United
Sun, 17 May - Sun, 24 May
BWI
Baltimore
MLI
Moline
€452 Return, found 20 hours ago
€452
Return
found 20 hours ago
Select United flight, departing Sun, 17 May from Baltimore to Moline, returning Sun, 24 May, priced at €452 found 20 hours ago
American Airlines
Sun, 17 May - Sun, 24 May
BWI
Baltimore
MLI
Moline
€462 Return, found 20 hours ago
€462
Return
found 20 hours ago
Select American Airlines flight, departing Sun, 17 May from Baltimore to Moline, returning Sun, 24 May, priced at €462 found 20 hours ago
United
Sun, 17 May - Sun, 24 May
BWI
Baltimore
MLI
Moline
€463 Return, found 20 hours ago
€463
Return
found 20 hours ago
Select United flight, departing Sun, 17 May from Baltimore to Moline, returning Sun, 24 May, priced at €463 found 20 hours ago
American Airlines
Sun, 17 May - Sun, 24 May
BWI
Baltimore
MLI
Moline
€466 Return, found 20 hours ago
€466
Return
found 20 hours ago
Select American Airlines flight, departing Sun, 17 May from Baltimore to Moline, returning Sun, 24 May, priced at €466 found 20 hours ago
Delta
Sun, 17 May - Sun, 24 May
BWI
Baltimore
MLI
Moline
€597 Return, found 20 hours ago
€597
Return
found 20 hours ago
Select Delta flight, departing Sun, 17 May from Baltimore to Moline, returning Sun, 24 May, priced at €597 found 20 hours ago

Frequently asked questions

How do I find cheap flights to Mercer County that have flexible change policies?
At Expedia, we've been channeling our inner Olympic gymnast to offer you the most flexible fares around town. Just tick the "No change fee" box right underneath the "Flexible change policies" filter to find your perfect flight to Mercer County.
Which airlines fly to Mercer County?
Book a seat with one of these airlines and the exciting region of Mercer County will be yours to discover:

  • American Airlines - 121 flights to or near Mercer County each month, including 121 flights to Quad City Intl. Airport (MLI) per month.
  • United Airlines - 108 flights to or near Mercer County each month, including 108 flights to Quad City Intl. Airport (MLI) per month.
  • Delta Air Lines - 60 flights to or near Mercer County each month, including 60 flights to Quad City Intl. Airport (MLI) per month.

How can I find cheap tickets to Mercer County?
For an amazing deal to Mercer County, book well ahead of time. Also think about using Expedia's handy "flexible dates" link at the top of your search results. This will display prices for nearby days. In the last seven days, €360 was the lowest price for a flight to Mercer County.
How much is a flight to Mercer County?
There were a lot of cheap fares up for grabs in the last seven days, with the cost of a return air ticket to Mercer County ranging between €360 and €597. Many lucky holiday makers locked in one-way tickets from Baltimore (BWI) for only €422.
What are the most popular airports to fly into in Mercer County?
Start organising your Mercer County getaway by securing one of the 325 flights each month to Quad City Intl. Airport (MLI). This is the region's main entry point.
How much is a plane ticket to Mercer County?
In the last seven days, ticket prices to Mercer County varied from €360 to €597.
What months are the cheapest to book a flight to Mercer County?
February is the most affordable month to purchase a seat for your Mercer County getaway. Airfares cost the most throughout the month of December, so keep clear of this time if you can.

Book with confidence

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.
About Mercer County
*Available to Expedia members.