What are the cheapest airlines flying from Milwaukee to Lisbon round-trip?

According to our current data, United Airlines ($751), American Airlines ($814), and Air Canada ($937) offers the cheapest pricing from Milwaukee to Lisbon. You may be able to fly from Milwaukee to Lisbon for 36% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Milwaukee to Lisbon one-way?

To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $517. Air Canada flights start at $547 while deals on Lufthansa start at $567 one-way.

What is the cheapest day to fly from Milwaukee to Lisbon?

Travelers seeking maximum savings on their Milwaukee to Lisbon flight should consider departing on Sunday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

What are the most popular airlines that fly from Milwaukee to Lisbon?

The most popular airlines flying from Milwaukee to Lisbon are American Airlines, Delta and KLM. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from Milwaukee to Lisbon?

It’s generally more expensive to depart on a Saturday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Milwaukee to Lisbon?

Travelers have found it’s best to book a flight 57 days in advance to save up to 187% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 57 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Milwaukee to Lisbon 1-2 weeks in advance for as low as $1,126, or $1,594 for flights within the next 24 hours.

What is the cheapest month to fly from Milwaukee to Lisbon?

Our data shows that November tends to be the cheapest month to fly to Lisbon from Milwaukee. Users have commonly found prices around $1,175 for the month, but tickets can be as low as $592. Due to multiple factors, prepare for potentially higher prices in July.

Can I find deals for flights from Milwaukee to Lisbon that include hotel bookings?

Yes. In addition to deals on Milwaukee to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Milwaukee to Lisbon?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Milwaukee to Lisbon.

Can I find deals for business class flights from Milwaukee to Lisbon?

Yes. Cheapflights offers flight deals from Milwaukee to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$517+ Flights from Milwaukee to Lisbon

Q: How much does it cost to fly round-trip from Milwaukee to Lisbon?

Airfare is below average for this route at the moment. Milwaukee to Lisbon flights typically cost between $892 and $1,326 in September. The cheapest round-trip price found within the last 3 days was $751 on United Airlines (Sep 30-Oct 15).

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Cheap flight deals from Milwaukee to Lisbon

Round-trip from	$751 (United Airlines)
One-way from	$517 (Cheapflightsfares)
Popular in	July
Cheapest in	November
Average price	$1,882

From Milwaukee-Mitchell to Lisbon Humberto Delgado

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One-way flight from Milwaukee-Mitchell to Lisbon Humberto Delgado

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Highest demand for flights based on searches. 22% potential increase in price ($335 potential increase over avg. RT price).

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Cheapest flight prices on average. 5% potential price decrease ($65 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Milwaukee to Lisbon

Cheapest flights from Milwaukee to Lisbon
Explore the most affordable flight options available from Milwaukee to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Mon 11/103:49 pmMKE - LIS

2 stops35h 31mMultiple Airlines

Sun 11/235:00 amLIS - MKE

2 stops41h 32mMultiple Airlines

Deal found 7/29

$615

Tue 9/306:00 amMKE - LIS

2 stops21h 20mUnited Airlines

Wed 10/1512:15 pmLIS - MKE

2 stops16h 16mUnited Airlines

Deal found 7/31

$751

Tue 9/302:12 pmMKE - LIS

1 stop12h 53mAmerican Airlines

Wed 10/1511:05 amLIS - MKE

1 stop15h 13mAmerican Airlines

Deal found 7/31

$814

Sun 11/2312:05 pmMKE - LIS

2 stops29h 25mLufthansa

Sat 11/292:10 pmLIS - MKE

2 stops56h 22mLufthansa

Deal found 7/30

$823

Sat 9/1310:50 amMKE - LIS

2 stops40h 30mAir Canada

Mon 9/2212:50 pmLIS - MKE

2 stops28h 40mAir Canada

Deal found 7/30

$937

Sat 9/202:23 pmMKE - LIS

2 stops25h 12mAer Lingus

Fri 9/2610:15 pmLIS - MKE

2 stops27h 45mAer Lingus

Deal found 7/30

$1,014

Fri 9/124:39 pmMKE - LIS

2 stops45h 26mBritish Airways

Fri 9/198:45 pmLIS - MKE

2 stops29h 15mBritish Airways

Deal found 7/29

$1,039

Sat 9/134:38 pmMKE - LIS

1 stop11h 37mTAP AIR PORTUGAL

Sat 9/2011:45 amLIS - MKE

1 stop33h 58mTAP AIR PORTUGAL

Deal found 7/30

$1,150

Best flights from Milwaukee to Lisbon
Discover carefully curated flight deals from Milwaukee to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2025.

Tue 9/306:00 amMKE - LIS

2 stops21h 20mUnited Airlines

Wed 10/1512:15 pmLIS - MKE

2 stops16h 16mUnited Airlines

Deal found 7/31

$751

Tue 9/302:12 pmMKE - LIS

1 stop12h 53mAmerican Airlines

Wed 10/1511:05 amLIS - MKE

1 stop15h 13mAmerican Airlines

Deal found 7/31

$814

Sat 9/1310:50 amMKE - LIS

2 stops40h 30mAir Canada

Mon 9/2212:50 pmLIS - MKE

2 stops28h 40mAir Canada

Deal found 7/30

$937

Sat 9/135:45 pmMKE - LIS

2 stops33h 35mMultiple Airlines

Sat 9/206:15 amLIS - MKE

2 stops44h 31mMultiple Airlines

Deal found 7/30

$947

Tue 8/265:45 pmMKE - LIS

2 stops23h 45mLufthansa

Sun 8/316:15 amLIS - MKE

2 stops20h 31mLufthansa

Deal found 7/30

$977

Sat 9/202:23 pmMKE - LIS

2 stops25h 12mAer Lingus

Fri 9/2610:15 pmLIS - MKE

2 stops27h 45mAer Lingus

Deal found 7/30

$1,014

Fri 9/124:39 pmMKE - LIS

2 stops45h 26mBritish Airways

Fri 9/198:45 pmLIS - MKE

2 stops29h 15mBritish Airways

Deal found 7/29

$1,039

Sat 9/134:38 pmMKE - LIS

1 stop11h 37mTAP AIR PORTUGAL

Sat 9/2011:45 amLIS - MKE

1 stop33h 58mTAP AIR PORTUGAL

Deal found 7/30

$1,150

Last-minute flights from Milwaukee to Lisbon
Discover last-minute flight deals from Milwaukee to Lisbon. Data last updated July 31, 2025 and is based on user searches.

Wed 8/131:06 pmMKE - LIS

2 stops15h 39mAer Lingus

Sat 8/1610:15 pmLIS - MKE

2 stops27h 03mAer Lingus

Deal found 7/31

$1,346

Tue 8/266:00 amMKE - LIS

2 stops21h 20mUnited Airlines

Tue 9/212:15 pmLIS - MKE

2 stops16h 26mUnited Airlines

Deal found 7/30

$888

Tue 8/266:32 amMKE - LIS

1 stop20h 33mAmerican Airlines

Tue 9/26:35 amLIS - MKE

2 stops18h 43mAmerican Airlines

Deal found 7/30

$904

Tue 8/265:45 pmMKE - LIS

2 stops23h 45mLufthansa

Sun 8/316:15 amLIS - MKE

2 stops20h 31mLufthansa

Deal found 7/30

$977

Tue 8/263:44 pmMKE - LIS

2 stops13h 21mMultiple Airlines

Tue 9/211:25 amLIS - MKE

3 stops16h 31mMultiple Airlines

Deal found 7/30

$1,401

Thu 8/285:45 pmMKE - LIS

2 stops35h 20mAir Canada

Tue 9/211:25 amLIS - MKE

2 stops35h 45mAir Canada

Deal found 7/30

$1,255

One-way flights from Milwaukee to Lisbon
Search for one-way flight options from Milwaukee to Lisbon. Find affordable one-way fares based on user searches. Data last updated July 31, 2025.

Mon 9/19:58 amMKE - LIS

2 stops29h 37mAer Lingus

Deal found 7/31

$517

Wed 9/1710:50 amMKE - LIS

3 stops16h 30mAir Canada

Deal found 7/29

$547

Wed 9/177:15 pmMKE - LIS

2 stops20h 50mLufthansa

Deal found 7/29

$567

Mon 9/14:03 pmMKE - LIS

1 stop12h 07mTAP AIR PORTUGAL

Deal found 7/30

$605

Mon 9/16:32 amMKE - LIS

1 stop20h 33mAmerican Airlines

Deal found 7/29

$734

Wed 9/176:00 amMKE - LIS

1 stop20h 20mMultiple Airlines

Deal found 7/29

$930

Fly from

Fly to

Route

Depart

Return

Price

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 9/30

6:00 am-9:20 am

2 stops21h 20m

Lisbon Humberto Delgado

Wed 10/15

12:15 pm-10:31 pm

2 stops16h 16m

$751

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 9/30

2:12 pm-9:05 am

1 stop12h 53m

Lisbon Humberto Delgado

Wed 10/15

11:05 am-8:18 pm

1 stop15h 13m

$814

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sat 9/13

10:50 am-9:20 am

2 stops40h 30m

Lisbon Humberto Delgado

Mon 9/22

12:50 pm-11:30 am

2 stops28h 40m

$937

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sat 9/13

5:45 pm-9:20 am

2 stops33h 35m

Lisbon Humberto Delgado

Sat 9/20

6:15 am-8:46 pm

2 stops44h 31m

$947

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Tue 8/26

5:45 pm-11:30 pm

2 stops23h 45m

Lisbon Humberto Delgado

Sun 8/31

6:15 am-8:46 pm

2 stops20h 31m

$977

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sat 9/20

2:23 pm-9:35 pm

2 stops25h 12m

Lisbon Humberto Delgado

Fri 9/26

10:15 pm-8:00 pm

2 stops27h 45m

$1,014

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Fri 9/12

4:39 pm-8:05 pm

2 stops45h 26m

Lisbon Humberto Delgado

Fri 9/19

8:45 pm-8:00 pm

2 stops29h 15m

$1,039

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Sat 9/13

4:38 pm-10:15 am

1 stop11h 37m

Lisbon Humberto Delgado

Sat 9/20

11:45 am-3:43 pm

1 stop33h 58m

$1,150

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Mon 9/1

9:58 am-9:35 pm

2 stops29h 37m

$517

MilwaukeeLisbon

MKE - LIS

MKELIS

Milwaukee-Mitchell

Wed 9/17

10:50 am-9:20 am

3 stops16h 30m

$547

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 14 results

Best time to book a flight from Milwaukee to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Milwaukee with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Milwaukee to Lisbon

How far ahead should I book a flight from Milwaukee to Lisbon?

The best time to book flights from Milwaukee to Lisbon is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Milwaukee to Lisbon?

Currently, January is the cheapest month in which you can book a flight from Milwaukee to Lisbon (average of $612). Flying from Milwaukee to Lisbon in June is currently the most expensive (average of $1,129). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MKE to LIS?

Unlike in the afternoon, when flights are generally more expensive, you can save up to 16% on flights from Milwaukee to Lisbon by exploring options for tickets at noon.

How much does it cost to fly round-trip from Milwaukee to Lisbon?

Reviews of airlines servicing Lisbon

Read reviews from past customers who have flown United Airlines, American Airlines, and Air Canada from Milwaukee to Lisbon. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,900 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,900 reviews

United Airlines

7.4

Good

8,900 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,900 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Air Canada

7.1

Good

9,851 reviews

United Airlines

7.4

Good

8,900 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Aer Lingus

7.1

Good

1,192 reviews

United Airlines

7.4

Good

8,900 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

TAP AIR PORTUGAL

7.1

Good

1,933 reviews

United Airlines

7.4

Good

8,900 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

What are the cheapest airlines flying from Milwaukee to Lisbon round-trip?
According to our current data, United Airlines ($751), American Airlines ($814), and Air Canada ($937) offers the cheapest pricing from Milwaukee to Lisbon. You may be able to fly from Milwaukee to Lisbon for 36% less than the average price by searching for these airlines.
What are the cheapest airlines to fly from Milwaukee to Lisbon one-way?
To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $517. Air Canada flights start at $547 while deals on Lufthansa start at $567 one-way.
Can I find deals for flights from Milwaukee to Lisbon that include hotel bookings?
Yes. In addition to deals on Milwaukee to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Milwaukee to Lisbon?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Milwaukee to Lisbon.
Can I find deals for business class flights from Milwaukee to Lisbon?
Yes. Cheapflights offers flight deals from Milwaukee to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Milwaukee to Lisbon?
Currently, January is the cheapest month in which you can book a flight from Milwaukee to Lisbon (average of $612). Flying from Milwaukee to Lisbon in June is currently the most expensive (average of $1,129). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Other flights to Lisbon

Top 4 airlines flying from Milwaukee to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$555	Average$894	FlexibilityNo cancel fee	On-time69%
KLM	Cheapest$604	Average$1,154	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$695	Average$1,221	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$703	Average$1,209	FlexibilityNo cancel fee	On-time71%

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$517+ Cheap flights from Milwaukee (MKE) to Lisbon (LIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.

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Find flight deals from Milwaukee to Lisbon

Cheapest flights from Milwaukee to LisbonExplore the most affordable flight options available from Milwaukee to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Explore the most affordable flight options available from Milwaukee to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Milwaukee to Lisbon that are best for you.

Best time to book a flight from Milwaukee to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Milwaukee with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Milwaukee to Lisbon

How far ahead should I book a flight from Milwaukee to Lisbon?

Use this chart to determine the optimal time to book a round-trip flight from Milwaukee to Lisbon. Price data was last updated on July 25, 2025.

What is the cheapest month to book a flight from Milwaukee to Lisbon?

What is the cheapest time of day to fly from MKE to LIS?

Find hourly flight availability from Milwaukee to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

How much does it cost to fly round-trip from Milwaukee to Lisbon?

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated July 31, 2025.

Read reviews from past customers who have flown United Airlines, American Airlines, and Air Canada from Milwaukee to Lisbon. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Milwaukee to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Milwaukee to Lisbon round-trip?

What are the cheapest airlines to fly from Milwaukee to Lisbon one-way?

Can I find deals for flights from Milwaukee to Lisbon that include hotel bookings?

How can I find direct flights from Milwaukee to Lisbon?

Can I find deals for business class flights from Milwaukee to Lisbon?

What is the cheapest month to book a flight from Milwaukee to Lisbon?

Traveling to a place near Lisbon?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Milwaukee to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Milwaukee to Lisbon

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Cheapest flights from Milwaukee to Lisbon
Explore the most affordable flight options available from Milwaukee to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.