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Cheap flights from Flint to Portugal from $621

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Flint to Portugal departing on 3/11. 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
0 bags

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Find the cheapest flights from Flint to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
3:30 pm - 11:30 pm
FNT
-
LIS
28h 00m
2 stops
United Airlines Logo
11:25 am - 7:04 pm
LIS
-
FNT
36h 39m
2 stops
$621United Airlines
Wed, Mar 11 - Wed, Apr 15
United Airlines Logo
3:30 pm - 1:20 pm
FNT
-
LIS
17h 50m
2 stops
United Airlines Logo
11:25 am - 7:04 pm
LIS
-
FNT
36h 39m
2 stops
$706United Airlines
Wed, Mar 11 - Wed, Apr 15
United Airlines Logo
3:36 pm - 9:55 pm
FNT
-
LIS
25h 19m
2 stops
United Airlines Logo
12:20 pm - 3:01 pm
LIS
-
FNT
31h 41m
2 stops
$748United Airlines
Fri, Aug 21 - Fri, Aug 28
United Airlines Logo
3:36 pm - 9:55 pm
FNT
-
LIS
25h 19m
2 stops
United Airlines Logo
11:25 am - 6:48 pm
LIS
-
FNT
36h 23m
2 stops
$802United Airlines
Fri, Aug 21 - Sat, Aug 29
United Airlines Logo
6:30 am - 10:30 am
FNT
-
LIS
23h 00m
2 stops
United Airlines Logo
11:25 am - 3:01 pm
LIS
-
FNT
32h 36m
2 stops
$812United Airlines
Mon, Jun 29 - Tue, Jul 7
United Airlines Logo
6:30 am - 10:30 am
FNT
-
LIS
23h 00m
2 stops
United Airlines Logo
6:15 am - 7:06 pm
LIS
-
FNT
17h 51m
2 stops
$821United Airlines
Mon, Jun 29 - Wed, Jul 8
United Airlines Logo
10:09 am - 10:45 pm
FNT
-
LIS
31h 36m
2 stops
United Airlines Logo
11:25 am - 11:03 pm
LIS
-
FNT
40h 38m
2 stops
$866United Airlines
Tue, May 19 - Tue, Jun 16
United Airlines Logo
7:45 pm - 3:35 pm
FNT
-
LIS
38h 50m
2 stops
United Airlines Logo
11:25 am - 11:03 pm
LIS
-
FNT
40h 38m
2 stops
$885United Airlines
Tue, May 19 - Tue, Jun 16
United Airlines Logo
6:30 am - 9:20 am
FNT
-
LIS
21h 50m
2 stops
United Airlines Logo
11:25 am - 3:01 pm
LIS
-
FNT
32h 36m
2 stops
$910United Airlines
Sun, Jun 28 - Tue, Jul 7
United Airlines Logo
6:30 am - 8:20 am
FNT
-
LIS
20h 50m
2 stops
United Airlines Logo
11:25 am - 3:01 pm
LIS
-
FNT
32h 36m
2 stops
$912United Airlines
Tue, Jun 30 - Tue, Jul 7

United Airlines flights from Flint to Portugal

Our best United Airlines deals on Flint to Portugal flight tickets
United Airlines
Mar 11
FNT3:30 pmFlint Bishop
28h 00m
2 stops
LIS11:30 pmLisbon Humberto Delgado
Apr 15
LIS11:25 amLisbon Humberto Delgado
36h 39m
2 stops
FNT7:04 pmFlint Bishop
$621
United Airlines
Mar 11
FNT3:30 pmFlint Bishop
17h 50m
2 stops
LIS1:20 pmLisbon Humberto Delgado
Apr 15
LIS11:25 amLisbon Humberto Delgado
36h 39m
2 stops
FNT7:04 pmFlint Bishop
$706
United Airlines
Aug 21
FNT3:36 pmFlint Bishop
25h 19m
2 stops
LIS9:55 pmLisbon Humberto Delgado
Aug 28
LIS12:20 pmLisbon Humberto Delgado
31h 41m
2 stops
FNT3:01 pmFlint Bishop
$748

American Airlines flights from Flint to Portugal

Our best American Airlines deals on Flint to Portugal flight tickets
American Airlines
Feb 27
FNT5:40 amFlint Bishop
22h 10m
2 stops
LIS8:50 amLisbon Humberto Delgado
Mar 11
LIS6:30 amLisbon Humberto Delgado
20h 31m
2 stops
FNT11:01 pmFlint Bishop
$694
American Airlines
Feb 27
FNT5:40 amFlint Bishop
22h 10m
2 stops
LIS8:50 amLisbon Humberto Delgado
Mar 11
LIS8:20 amLisbon Humberto Delgado
18h 41m
2 stops
FNT11:01 pmFlint Bishop
$765
American Airlines
Feb 27
FNT5:40 amFlint Bishop
22h 10m
2 stops
LIS8:50 amLisbon Humberto Delgado
Mar 11
LIS8:20 amLisbon Humberto Delgado
18h 41m
2 stops
FNT11:01 pmFlint Bishop
$804

momondo Fare Finder

 
Customize your flight search to find flights from Flint to Portugal 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 February 22, 2026.
Use the filters below to find and compare flights from Flint to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

FlintLisbon

FNT - LIS

FNTLIS

Flint Bishop

Wed 3/11

3:30 pm-11:30 pm

2 stops28h 00m

Lisbon Humberto Delgado

Wed 4/15

11:25 am-7:04 pm

2 stops36h 39m

$621

FlintLisbon

FNT - LIS

FNTLIS

Flint Bishop

Wed 3/11

3:30 pm-1:20 pm

2 stops17h 50m

Lisbon Humberto Delgado

Wed 4/15

11:25 am-7:04 pm

2 stops36h 39m

$706

FlintLisbon

FNT - LIS

FNTLIS

Flint Bishop

Fri 8/21

3:36 pm-9:55 pm

2 stops25h 19m

Lisbon Humberto Delgado

Fri 8/28

12:20 pm-3:01 pm

2 stops31h 41m

$748

FlintLisbon

FNT - LIS

FNTLIS

Flint Bishop

Fri 8/21

3:36 pm-9:55 pm

2 stops25h 19m

Lisbon Humberto Delgado

Sat 8/29

11:25 am-6:48 pm

2 stops36h 23m

$802

FlintLisbon

FNT - LIS

FNTLIS

Flint Bishop

Mon 6/29

6:30 am-10:30 am

2 stops23h 00m

Lisbon Humberto Delgado

Tue 7/7

11:25 am-3:01 pm

2 stops32h 36m

$812

FlintLisbon

FNT - LIS

FNTLIS

Flint Bishop

Mon 6/29

6:30 am-10:30 am

2 stops23h 00m

Lisbon Humberto Delgado

Wed 7/8

6:15 am-7:06 pm

2 stops17h 51m

$821

FlintLisbon

FNT - LIS

FNTLIS

Flint Bishop

Tue 5/19

10:09 am-10:45 pm

2 stops31h 36m

Lisbon Humberto Delgado

Tue 6/16

11:25 am-11:03 pm

2 stops40h 38m

$866

FlintLisbon

FNT - LIS

FNTLIS

Flint Bishop

Tue 5/19

7:45 pm-3:35 pm

2 stops38h 50m

Lisbon Humberto Delgado

Tue 6/16

11:25 am-11:03 pm

2 stops40h 38m

$885

FlintLisbon

FNT - LIS

FNTLIS

Flint Bishop

Sun 6/28

6:30 am-9:20 am

2 stops21h 50m

Lisbon Humberto Delgado

Tue 7/7

11:25 am-3:01 pm

2 stops32h 36m

$910

FlintLisbon

FNT - LIS

FNTLIS

Flint Bishop

Tue 6/30

6:30 am-8:20 am

2 stops20h 50m

Lisbon Humberto Delgado

Tue 7/7

11:25 am-3:01 pm

2 stops32h 36m

$912

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from Flint 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 Flint Bishop to Portugal?

United Airlines is the most popular carrier operating from Flint Bishop to Portugal

What airlines fly to Portugal?

United Airlines, Delta and Air Canada are the top three most popular airlines that fly to Portugal from Flint according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 10 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

Cheap Flint to Portugal flight deals and tips

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

Fastest flight time

17h 50m

Direct flights

None
The fastest flight from Flint to Portugal takes 17h 50m
There are no direct flights from Flint to Portugal. There are no popular flight routes from Flint to Portugal.
Search flight deals

  • When did momondo last update prices for flights from Flint Bishop Airport to Portugal?

    Prices for flights from Flint Bishop Airport to Portugal were last updated today.

  • How old do you have to be to fly from Flint Bishop Airport to Portugal?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Flint Bishop Airport to Portugal.

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

    The required travel and health documents for your Portugal 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 Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

It is quick and easy to find Flint 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 Flint to Portugal with flexible booking policies on momondo?

Flights from Flint to Portugal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Flint to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Portugal, momondo offers a useful price alert feature which will track prices for flights to Portugal from Flint and alert you when they change.

An easier way to manage your Portugal 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
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Tue 3/24
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Find better results for your trip to Portugal

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