When did momondo last update prices for flights from Duluth Intl Airport to Portugal?

Prices for flights from Duluth Intl Airport to Portugal refresh daily.

How old do you have to be to fly from Duluth Intl Airport to Portugal?

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 Duluth Intl Airport to Portugal.

What documentation or ID do you need to fly to Portugal?

The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$537 Cheap Flights from Duluth to Portugal in 2026/27

Find the cheapest flights from Duluth to Portugal

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 1:30 pmDLH Duluth Intl-LIS Lisbon Humberto Delgado

24h 30m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

5:00 am - 9:47 pmLIS Lisbon Humberto Delgado-DLH Duluth Intl

22h 47m2 stops Frankfurt am Main Chicago O'Hare Intl

$772United Airlines

Sun, Dec 6 - Sun, Dec 13

11:00 am - 9:20 amDLH Duluth Intl-LIS Lisbon Humberto Delgado

16h 20m2 stops Chicago O'Hare Intl Toronto Pearson Intl

12:20 pm - 11:09 pmLIS Lisbon Humberto Delgado-DLH Duluth Intl

16h 49m3 stops Washington, D.C. Dulles Intl Cleveland Hopkins Intl Chicago O'Hare Intl

$5,183United Airlines

Sun, Dec 6 - Sun, Dec 13

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United Airlines flights from Duluth to Portugal

Our best United Airlines deals on Duluth to Portugal flight tickets

United Airlines

Dec 6

DLH7:00 amDuluth Intl

24h 30m

2 stops

LIS1:30 pmLisbon Humberto Delgado

Dec 13

LIS5:00 amLisbon Humberto Delgado

22h 47m

2 stops

DLH9:47 pmDuluth Intl

$772

United Airlines

Dec 6

DLH11:00 amDuluth Intl

16h 20m

2 stops

LIS9:20 amLisbon Humberto Delgado

Dec 13

LIS12:20 pmLisbon Humberto Delgado

16h 49m

3 stops

DLH11:09 pmDuluth Intl

$5,183

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DuluthLisbon

DLH Duluth Intl - LIS Lisbon Humberto Delgado

DLHLIS

Duluth Intl

Sun 12/6

7:00 am-1:30 pm

2 stops24h 30m

Lisbon Humberto Delgado

Sun 12/13

5:00 am-9:47 pm

2 stops22h 47m

$772

Quickest round-trip

DuluthLisbon

DLH Duluth Intl - LIS Lisbon Humberto Delgado

DLHLIS

Duluth Intl

Sun 12/6

11:00 am-9:20 am

2 stops16h 20m

Lisbon Humberto Delgado

Sun 12/13

12:20 pm-11:09 pm

3 stops16h 49m

$5,183

Cheapest one-way

Quickest one-way

DuluthPorto

DLH Duluth Intl - OPO Porto

DLHOPO

Duluth Intl

Mon 12/7

5:00 am-10:35 am

2 stops23h 35m

$537

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Duluth to Portugal

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 Duluth Intl to Portugal?

Delta is the most popular carrier operating from Duluth Intl to Portugal

Cheap Duluth to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Duluth to Portugal

Best Price Found	$537
Fastest flight time	34h 12m
Direct flights	None

The best one-way flight to Portugal from Duluth in the past 72 hours is $537. The best round-trip flight deal from Duluth to Portugal found on momondo in the last 72 hours is $772.

The fastest flight from Duluth to Portugal takes 34h 12m

There are no direct flights from Duluth to Portugal. There are no popular flight routes from Duluth to Portugal.

Search flight deals

Frequently asked questions about flying from Duluth to Portugal

When did momondo last update prices for flights from Duluth Intl Airport to Portugal?
Prices for flights from Duluth Intl Airport to Portugal refresh daily.
How old do you have to be to fly from Duluth Intl Airport to Portugal?
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 Duluth Intl Airport to Portugal.
What documentation or ID do you need to fly to Portugal?
The necessary travel and health documents for your Portugal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Duluth to Portugal?

It is quick and easy to find Duluth to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

Can I find flights from Duluth to Portugal with flexible booking policies on momondo?

momondo does allow users to show only those flights to Portugal from Duluth which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Duluth to Portugal?

momondo provides multiple filters to help you find the best flight to Portugal from Duluth. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Duluth to Portugal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portugal and let you know when they change.