Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Portland to La Crosse from $228

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to La Crosse departing on 8/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Portland to La Crosse

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:58 am - 12:22 am
PDX
-
LSE
10h 24m
2 stops
American Airlines Logo
5:20 pm - 11:59 pm
LSE
-
PDX
8h 39m
1 stop
$440American Airlines
Tue, Aug 11 - Tue, Aug 18
American Airlines Logo
11:58 am - 12:22 am
PDX
-
LSE
10h 24m
2 stops
American Airlines Logo
5:20 pm - 11:59 pm
LSE
-
PDX
8h 39m
1 stop
$540American Airlines
Tue, Aug 11 - Thu, Aug 20
Allegiant Air Logo
6:58 pm - 7:20 pm
PDX
-
LSE
22h 22m
1 stop
Allegiant Air Logo
6:30 pm - 3:32 pm
LSE
-
PDX
23h 02m
2 stops
$559Allegiant Air
Thu, Aug 13 - Sun, Aug 16
American Airlines Logo
5:59 am - 4:50 pm
PDX
-
LSE
8h 51m
1 stop
American Airlines Logo
5:20 pm - 11:59 pm
LSE
-
PDX
8h 39m
1 stop
$590American Airlines
Wed, Aug 12 - Thu, Aug 20
American Airlines Logo
11:58 am - 12:22 am
PDX
-
LSE
10h 24m
2 stops
American Airlines Logo
6:00 am - 5:30 pm
LSE
-
PDX
13h 30m
2 stops
$597American Airlines
Tue, Aug 11 - Tue, Aug 18
American Airlines Logo
5:59 am - 4:50 pm
PDX
-
LSE
8h 51m
1 stop
American Airlines Logo
5:20 pm - 11:59 pm
LSE
-
PDX
8h 39m
1 stop
$632American Airlines
Fri, Aug 14 - Thu, Aug 20
Allegiant Air Logo
6:58 pm - 7:20 pm
PDX
-
LSE
22h 22m
1 stop
Allegiant Air Logo
6:30 pm - 3:32 pm
LSE
-
PDX
23h 02m
2 stops
$634Allegiant Air
Sun, Aug 9 - Sun, Aug 16
American Airlines Logo
11:58 am - 12:22 am
PDX
-
LSE
10h 24m
2 stops
American Airlines Logo
5:20 pm - 11:59 pm
LSE
-
PDX
8h 39m
1 stop
$638American Airlines
Thu, Aug 13 - Tue, Aug 18
American Airlines Logo
5:15 am - 12:22 am
PDX
-
LSE
17h 07m
2 stops
American Airlines Logo
5:20 pm - 11:59 pm
LSE
-
PDX
8h 39m
1 stop
$669American Airlines
Wed, Aug 12 - Fri, Aug 21
American Airlines Logo
3:00 pm - 2:42 pm
PDX
-
LSE
21h 42m
2 stops
American Airlines Logo
5:20 pm - 11:59 pm
LSE
-
PDX
8h 39m
1 stop
$678American Airlines
Fri, Aug 14 - Fri, Aug 21

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

American Airlines flights from Portland to La Crosse

Our best American Airlines deals on Portland to La Crosse flight tickets
American Airlines
Aug 11
PDX11:58 amPortland
10h 24m
2 stops
LSE12:22 amLa Crosse
Aug 18
LSE5:20 pmLa Crosse
8h 39m
1 stop
PDX11:59 pmPortland
$440
American Airlines
Aug 11
PDX11:58 amPortland
10h 24m
2 stops
LSE12:22 amLa Crosse
Aug 20
LSE5:20 pmLa Crosse
8h 39m
1 stop
PDX11:59 pmPortland
$540
American Airlines
Aug 12
PDX5:59 amPortland
8h 51m
1 stop
LSE4:50 pmLa Crosse
Aug 20
LSE5:20 pmLa Crosse
8h 39m
1 stop
PDX11:59 pmPortland
$590

Allegiant Air flights from Portland to La Crosse

Our best Allegiant Air deals on Portland to La Crosse flight tickets
Allegiant Air
Aug 13
PDX6:58 pmPortland
22h 22m
1 stop
LSE7:20 pmLa Crosse
Aug 16
LSE6:30 pmLa Crosse
23h 02m
2 stops
PDX3:32 pmPortland
$559
Allegiant Air
Aug 9
PDX6:58 pmPortland
22h 22m
1 stop
LSE7:20 pmLa Crosse
Aug 16
LSE6:30 pmLa Crosse
23h 02m
2 stops
PDX3:32 pmPortland
$634

momondo Fare Finder

 
Customize your flight search to find flights from Portland to La Crosse that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 16, 2026.
Use the filters below to find and compare flights from Portland to La Crosse that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Tue 8/11

11:58 am-12:22 am

2 stops10h 24m

La Crosse

Tue 8/18

5:20 pm-11:59 pm

1 stop8h 39m

$440

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Tue 8/11

11:58 am-12:22 am

2 stops10h 24m

La Crosse

Thu 8/20

5:20 pm-11:59 pm

1 stop8h 39m

$540

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Thu 8/13

6:58 pm-7:20 pm

1 stop22h 22m

La Crosse

Sun 8/16

6:30 pm-3:32 pm

2 stops23h 02m

$559
Quickest round-trip

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Wed 8/12

5:59 am-4:50 pm

1 stop8h 51m

La Crosse

Thu 8/20

5:20 pm-11:59 pm

1 stop8h 39m

$590

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Tue 8/11

11:58 am-12:22 am

2 stops10h 24m

La Crosse

Tue 8/18

6:00 am-5:30 pm

2 stops13h 30m

$597

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Fri 8/14

5:59 am-4:50 pm

1 stop8h 51m

La Crosse

Thu 8/20

5:20 pm-11:59 pm

1 stop8h 39m

$632

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Sun 8/9

6:58 pm-7:20 pm

1 stop22h 22m

La Crosse

Sun 8/16

6:30 pm-3:32 pm

2 stops23h 02m

$634

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Thu 8/13

11:58 am-12:22 am

2 stops10h 24m

La Crosse

Tue 8/18

5:20 pm-11:59 pm

1 stop8h 39m

$638

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Wed 8/12

5:15 am-12:22 am

2 stops17h 07m

La Crosse

Fri 8/21

5:20 pm-11:59 pm

1 stop8h 39m

$669

PortlandLa Crosse

PDX - LSE

PDXLSE

Portland

Fri 8/14

3:00 pm-2:42 pm

2 stops21h 42m

La Crosse

Fri 8/21

5:20 pm-11:59 pm

1 stop8h 39m

$678

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to La Crosse from

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

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 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

Fastest flight time

8h 14m

Direct flights

None
The fastest flight from Portland to La Crosse takes 8h 14m
There are no direct flights from Portland to La Crosse. There are no popular flight routes from Portland to La Crosse.
Search flight deals

Frequently asked questions about flying from Portland to La Crosse

  • 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 14m 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 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.

Traveling to a place near La Crosse?

Book flights to La Crosse if you plan to visit one of these locations
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.

An easier way to manage your La Crosse trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 8/15
Sat 8/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States