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Cheap flights from Portland to La Crosse from $263

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 9/12. 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
11:40 am - 12:22 amPDX  Portland-LSE La Crosse
10h 42m2 stops Dallas/Fort Worth Chicago O'Hare Intl
American Airlines Logo
5:20 pm - 11:59 pmLSE  La Crosse-PDX Portland
8h 39m1 stop Chicago O'Hare Intl
$428American Airlines
Tue, Sep 1 - Mon, Sep 7
American Airlines Logo
5:59 am - 4:50 pmPDX  Portland-LSE La Crosse
8h 51m1 stop Chicago O'Hare Intl
American Airlines Logo
5:20 pm - 11:59 pmLSE  La Crosse-PDX Portland
8h 39m1 stop Chicago O'Hare Intl
$471American Airlines
Tue, Sep 1 - Mon, Sep 7
American Airlines Logo
12:01 pm - 12:20 amPDX  Portland-LSE La Crosse
10h 19m2 stops Dallas/Fort Worth Chicago O'Hare Intl
American Airlines Logo
5:22 pm - 12:08 amLSE  La Crosse-PDX Portland
8h 46m1 stop Chicago O'Hare Intl
$509American Airlines
Thu, Sep 10 - Thu, Sep 17
American Airlines Logo
1:12 pm - 11:59 pmPDX  Portland-LSE La Crosse
8h 47m1 stop Chicago O'Hare Intl
American Airlines Logo
6:55 pm - 11:59 pmLSE  La Crosse-PDX Portland
7h 04m1 stop Chicago O'Hare Intl
$514American Airlines
Sat, Oct 10 - Mon, Oct 12
American Airlines Logo
11:48 am - 11:22 amPDX  Portland-LSE La Crosse
21h 34m1 stop Chicago O'Hare Intl
American Airlines Logo
5:22 pm - 12:08 amLSE  La Crosse-PDX Portland
8h 46m1 stop Chicago O'Hare Intl
$558American Airlines
Thu, Sep 10 - Thu, Sep 17
American Airlines Logo
9:44 pm - 11:53 amPDX  Portland-LSE La Crosse
12h 09m2 stops Charlotte Douglas Chicago O'Hare Intl
American Airlines Logo
6:55 pm - 11:59 pmLSE  La Crosse-PDX Portland
7h 04m1 stop Chicago O'Hare Intl
$572American Airlines
Sat, Oct 10 - Mon, Oct 12
American Airlines Logo
12:01 pm - 12:20 amPDX  Portland-LSE La Crosse
10h 19m2 stops Dallas/Fort Worth Chicago O'Hare Intl
American Airlines Logo
12:26 pm - 11:12 pmLSE  La Crosse-PDX Portland
12h 46m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl
$613American Airlines
Thu, Sep 10 - Thu, Sep 17
American Airlines Logo
9:00 am - 12:20 amPDX  Portland-LSE La Crosse
13h 20m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
American Airlines Logo
5:22 pm - 10:55 amLSE  La Crosse-PDX Portland
19h 33m1 stop Chicago O'Hare Intl
$700American Airlines
Mon, Sep 14 - Fri, Sep 18
American Airlines Logo
11:06 pm - 11:22 amPDX  Portland-LSE La Crosse
10h 16m2 stops Charlotte Douglas Chicago O'Hare Intl
American Airlines Logo
5:22 pm - 10:55 amLSE  La Crosse-PDX Portland
19h 33m1 stop Chicago O'Hare Intl
$702American Airlines
Mon, Sep 14 - Fri, Sep 18
American Airlines Logo
10:55 pm - 11:53 amPDX  Portland-LSE La Crosse
10h 58m1 stop Chicago O'Hare Intl
American Airlines Logo
6:55 pm - 12:22 pmLSE  La Crosse-PDX Portland
19h 27m1 stop Chicago O'Hare Intl
$707American Airlines
Mon, Oct 5 - Fri, Oct 9

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American Airlines flights from Portland to La Crosse

Our best American Airlines deals on Portland to La Crosse flight tickets
American Airlines
Sep 1
PDX11:40 amPortland
10h 42m
2 stops
LSE12:22 amLa Crosse
Sep 7
LSE5:20 pmLa Crosse
8h 39m
1 stop
PDX11:59 pmPortland
$428
American Airlines
Sep 1
PDX5:59 amPortland
8h 51m
1 stop
LSE4:50 pmLa Crosse
Sep 7
LSE5:20 pmLa Crosse
8h 39m
1 stop
PDX11:59 pmPortland
$471
American Airlines
Sep 10
PDX12:01 pmPortland
10h 19m
2 stops
LSE12:20 amLa Crosse
Sep 17
LSE5:22 pmLa Crosse
8h 46m
1 stop
PDX12:08 amPortland
$509

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 August 10, 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 Portland - LSE La Crosse

PDXLSE

Portland

Tue 9/1

11:40 am-12:22 am

2 stops10h 42m

La Crosse

Mon 9/7

5:20 pm-11:59 pm

1 stop8h 39m

$428

PortlandLa Crosse

PDX Portland - LSE La Crosse

PDXLSE

Portland

Tue 9/1

5:59 am-4:50 pm

1 stop8h 51m

La Crosse

Mon 9/7

5:20 pm-11:59 pm

1 stop8h 39m

$471

PortlandLa Crosse

PDX Portland - LSE La Crosse

PDXLSE

Portland

Thu 9/10

12:01 pm-12:20 am

2 stops10h 19m

La Crosse

Thu 9/17

5:22 pm-12:08 am

1 stop8h 46m

$509
Quickest round-trip

PortlandLa Crosse

PDX Portland - LSE La Crosse

PDXLSE

Portland

Sat 10/10

1:12 pm-11:59 pm

1 stop8h 47m

La Crosse

Mon 10/12

6:55 pm-11:59 pm

1 stop7h 04m

$514

PortlandLa Crosse

PDX Portland - LSE La Crosse

PDXLSE

Portland

Thu 9/10

11:48 am-11:22 am

1 stop21h 34m

La Crosse

Thu 9/17

5:22 pm-12:08 am

1 stop8h 46m

$558

PortlandLa Crosse

PDX Portland - LSE La Crosse

PDXLSE

Portland

Sat 10/10

9:44 pm-11:53 am

2 stops12h 09m

La Crosse

Mon 10/12

6:55 pm-11:59 pm

1 stop7h 04m

$572

PortlandLa Crosse

PDX Portland - LSE La Crosse

PDXLSE

Portland

Thu 9/10

12:01 pm-12:20 am

2 stops10h 19m

La Crosse

Thu 9/17

12:26 pm-11:12 pm

2 stops12h 46m

$613

PortlandLa Crosse

PDX Portland - LSE La Crosse

PDXLSE

Portland

Mon 9/14

9:00 am-12:20 am

2 stops13h 20m

La Crosse

Fri 9/18

5:22 pm-10:55 am

1 stop19h 33m

$700

PortlandLa Crosse

PDX Portland - LSE La Crosse

PDXLSE

Portland

Mon 9/14

11:06 pm-11:22 am

2 stops10h 16m

La Crosse

Fri 9/18

5:22 pm-10:55 am

1 stop19h 33m

$702

PortlandLa Crosse

PDX Portland - LSE La Crosse

PDXLSE

Portland

Mon 10/5

10:55 pm-11:53 am

1 stop10h 58m

La Crosse

Fri 10/9

6:55 pm-12:22 pm

1 stop19h 27m

$707

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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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

10h 42m

Direct flights

None
The fastest flight from Portland to La Crosse takes 10h 42m
There are no direct flights from Portland to La Crosse. There are no popular flight routes from Portland to La Crosse.
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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 10h 42m 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.

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