What is the cheapest airline that flies from Portland to La Crosse?

American Airlines is the most popular carrier operating from Portland to La Crosse

When did momondo last update prices for flights from Portland Airport to La Crosse Airport?

Prices for flights from Portland Airport to La Crosse Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Portland Airport to La Crosse Airport?

The number of operators available for flights from Portland Airport to La Crosse Airport is 1 as of November 2025.

How old do you have to be to fly from Portland Airport to La Crosse 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 Portland Airport to La Crosse Airport.

What documentation or ID do you need to fly to La Crosse Airport?

The required travel and health documents for your La Crosse Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at La Crosse Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$486 Cheap Flights from Portland to La Crosse in 2025/26

1 adult

0 bags

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Find the cheapest flights from Portland to La Crosse

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 4:16 pmPDX-LSE

8h 16m1 stop

6:00 am - 7:51 pmLSE-PDX

15h 51m2 stops

$510American Airlines

Find Deal

Tue, Jan 6 - Sat, Jan 10

5:25 am - 4:16 pmPDX-LSE

8h 51m2 stops

6:00 am - 7:51 pmLSE-PDX

15h 51m2 stops

$515American Airlines

Find Deal

Tue, Jan 6 - Sat, Jan 10

6:00 am - 4:16 pmPDX-LSE

8h 16m1 stop

6:00 am - 7:51 pmLSE-PDX

15h 51m2 stops

$540American Airlines

Find Deal

Tue, Jan 6 - Sat, Jan 10

10:15 pm - 11:07 amPDX-LSE

10h 52m2 stops

6:00 am - 7:51 pmLSE-PDX

15h 51m2 stops

$545American Airlines

Find Deal

Tue, Jan 6 - Sat, Jan 10

3:02 pm - 11:38 pmPDX-LSE

6h 36m1 stop

6:00 am - 6:02 pmLSE-PDX

14h 02m2 stops

$660American Airlines

Find Deal

Mon, Dec 29 - Thu, Jan 1

6:00 am - 11:07 amPDX-LSE

27h 07m1 stop

6:00 am - 8:27 pmLSE-PDX

16h 27m1 stop

$682American Airlines

Find Deal

Tue, Jan 6 - Sat, Jan 10

5:33 am - 7:36 pmPDX-LSE

12h 03m2 stops

6:00 am - 6:02 pmLSE-PDX

14h 02m2 stops

$711American Airlines

Find Deal

Mon, Dec 29 - Thu, Jan 1

3:02 pm - 9:39 amPDX-LSE

16h 37m1 stop

6:00 am - 2:12 pmLSE-PDX

10h 12m1 stop

$754American Airlines

Find Deal

Mon, Dec 29 - Thu, Jan 1

1:28 pm - 11:52 pmPDX-LSE

8h 24m1 stop

6:00 am - 12:38 pmLSE-PDX

8h 38m1 stop

$838American Airlines

Find Deal

Sun, Dec 7 - Thu, Dec 11

1:28 pm - 11:52 pmPDX-LSE

8h 24m1 stop

9:46 am - 9:07 pmLSE-PDX

13h 21m2 stops

$844American Airlines

Find Deal

Sun, Dec 7 - Thu, Dec 11

American Airlines flights from Portland to La Crosse

Our best American Airlines deals on Portland to La Crosse flight tickets

American Airlines

Jan 6

PDX6:00 amPortland

8h 16m

1 stop

LSE4:16 pmLa Crosse

Jan 10

LSE6:00 amLa Crosse

15h 51m

2 stops

PDX7:51 pmPortland

$510

Find similar

American Airlines

Jan 6

PDX5:25 amPortland

8h 51m

2 stops

LSE4:16 pmLa Crosse

Jan 10

LSE6:00 amLa Crosse

15h 51m

2 stops

PDX7:51 pmPortland

$515

Find similar

American Airlines

Jan 6

PDX6:00 amPortland

8h 16m

1 stop

LSE4:16 pmLa Crosse

Jan 10

LSE6:00 amLa Crosse

15h 51m

2 stops

PDX7:51 pmPortland

$540

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Tue 1/6

6:00 am-4:16 pm

1 stop8h 16m

La Crosse

Sat 1/10

6:00 am-7:51 pm

2 stops15h 51m

$510

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Tue 1/6

5:25 am-4:16 pm

2 stops8h 51m

La Crosse

Sat 1/10

6:00 am-7:51 pm

2 stops15h 51m

$515

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Tue 1/6

6:00 am-4:16 pm

1 stop8h 16m

La Crosse

Sat 1/10

6:00 am-7:51 pm

2 stops15h 51m

$540

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Tue 1/6

10:15 pm-11:07 am

2 stops10h 52m

La Crosse

Sat 1/10

6:00 am-7:51 pm

2 stops15h 51m

$545

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Mon 12/29

3:02 pm-11:38 pm

1 stop6h 36m

La Crosse

Thu 1/1

6:00 am-6:02 pm

2 stops14h 02m

$660

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Tue 1/6

6:00 am-11:07 am

1 stop27h 07m

La Crosse

Sat 1/10

6:00 am-8:27 pm

1 stop16h 27m

$682

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Mon 12/29

5:33 am-7:36 pm

2 stops12h 03m

La Crosse

Thu 1/1

6:00 am-6:02 pm

2 stops14h 02m

$711

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Mon 12/29

3:02 pm-9:39 am

1 stop16h 37m

La Crosse

Thu 1/1

6:00 am-2:12 pm

1 stop10h 12m

$754

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Sun 12/7

1:28 pm-11:52 pm

1 stop8h 24m

La Crosse

Thu 12/11

6:00 am-12:38 pm

1 stop8h 38m

$838

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Sun 12/7

1:28 pm-11:52 pm

1 stop8h 24m

La Crosse

Thu 12/11

9:46 am-9:07 pm

2 stops13h 21m

$844

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to La Crosse

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

Prices

Airlines

What is the cheapest time of day to depart on your flight to La Crosse?

According to our data, the cheapest time of day to fly to La Crosse is at noon. momondo users have found flights departing from Portland to La Crosse at noon for as low as $582. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to La Crosse, so prices are often more expensive at around $639 per ticket.

When to book flights from Portland to La Crosse

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to La Crosse according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to La Crosse (PDX to LSE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to La Crosse

Direct flights	None

There are no direct flights from Portland to La Crosse. There are no popular flight routes from Portland to La Crosse.

Search flight deals

How far is Portland to La Crosse by plane?
The straight-line distance from Portland to La Crosse is 1538.5 mi. Typically, this will take 8h 16m by plane in normal conditions.
When did momondo last update prices for flights from Portland Airport to La Crosse Airport?
Prices for flights from Portland Airport to La Crosse Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to La Crosse Airport?
The number of operators available for flights from Portland Airport to La Crosse Airport is 1 as of November 2025.
How old do you have to be to fly from Portland Airport to La Crosse 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 Portland Airport to La Crosse Airport.
What documentation or ID do you need to fly to La Crosse Airport?
The required travel and health documents for your La Crosse Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at La Crosse Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Portland to La Crosse?
momondo data reveals that the most frequently booked airline on the route from Portland to La Crosse is American Airlines, representing 100% of all bookings.

Best airlines flying from Portland to La Crosse

Compare and see reviews for airlines that fly from Portland to La Crosse with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $424	Free Cancellation	Rating 7.2 11,046 reviews		Search American Airlines flights

Onalaska

Winona

Decorah

Harpers Ferry

Lansing

Why use momondo?

Why should I use momondo to find a flight deal from Portland to La Crosse?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to La Crosse from Portland.

Can I find flights from Portland to La Crosse with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Portland to La Crosse flights to just show those with flexible booking policies.

How can momondo help me find flights from Portland to La Crosse?

Once all potential Portland to La Crosse flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to La Crosse right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to La Crosse flights. All you need is a valid email address and we will do the rest; it is that quick and easy.