What is the cheapest airline that flies from San Antonio to Duluth Intl?

United Airlines is the most popular carrier operating from San Antonio to Duluth Intl

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

Prices for flights from San Antonio Airport to Duluth Intl Airport are updated daily.

How many operators does momondo search for flights from San Antonio Airport to Duluth Intl Airport?

As of December 2025, there is 1 operator available to choose from for flights from San Antonio Airport to Duluth Intl Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Duluth Intl Airport.

What documentation or ID do you need to fly to Duluth Intl Airport?

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

$245 Cheap Flights from San Antonio to Duluth in 2025/26

1 adult

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Find the cheapest flights from San Antonio to Duluth

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 11:16 am

SAT

DLH

4h 46m1 stop

4:24 pm - 9:34 pm

DLH

SAT

5h 10m1 stop

$258Delta

Wed, Jan 7 - Wed, Jan 14

5:30 am - 3:44 pm

SAT

DLH

10h 14m2 stops

4:24 pm - 9:34 pm

DLH

SAT

5h 10m1 stop

$264Delta

Wed, Jan 7 - Wed, Jan 14

5:30 am - 3:44 pm

SAT

DLH

10h 14m2 stops

11:56 am - 10:55 pm

DLH

SAT

10h 59m2 stops

$294Delta

Wed, Jan 7 - Wed, Jan 14

6:30 am - 12:08 pm

SAT

DLH

5h 38m1 stop

4:20 pm - 9:28 pm

DLH

SAT

5h 08m1 stop

$363Delta

Thu, Apr 9 - Wed, Apr 15

9:00 am - 2:30 pm

SAT

DLH

5h 30m1 stop

3:05 pm - 11:13 pm

DLH

SAT

8h 08m1 stop

$408United Airlines

Wed, Jan 21 - Sat, Jan 24

6:30 am - 12:08 pm

SAT

DLH

5h 38m1 stop

12:00 pm - 11:12 pm

DLH

SAT

11h 12m2 stops

$444Delta

Thu, Apr 9 - Wed, Apr 15

5:25 am - 2:30 pm

SAT

DLH

9h 05m2 stops

3:05 pm - 11:13 pm

DLH

SAT

8h 08m1 stop

$449United Airlines

Wed, Jan 21 - Sat, Jan 24

5:25 am - 2:30 pm

SAT

DLH

9h 05m2 stops

7:40 am - 7:41 pm

DLH

SAT

12h 01m2 stops

$489United Airlines

Wed, Jan 21 - Sat, Jan 24

5:25 am - 2:30 pm

SAT

DLH

9h 05m2 stops

3:05 pm - 1:09 pm

DLH

SAT

22h 04m2 stops

$555United Airlines

Wed, Jan 21 - Sat, Jan 24

5:57 pm - 10:44 am

SAT

DLH

16h 47m2 stops

11:26 am - 9:10 pm

DLH

SAT

9h 44m2 stops

$616United Airlines

Thu, Apr 9 - Wed, Apr 15

Delta flights from San Antonio to Duluth

Our best Delta deals on San Antonio to Duluth flight tickets

Delta

Jan 7

SAT6:30 amSan Antonio

4h 46m

1 stop

DLH11:16 amDuluth Intl

Jan 14

DLH4:24 pmDuluth Intl

5h 10m

1 stop

SAT9:34 pmSan Antonio

$258

Find similar

Delta

Jan 7

SAT5:30 amSan Antonio

10h 14m

2 stops

DLH3:44 pmDuluth Intl

Jan 14

DLH4:24 pmDuluth Intl

5h 10m

1 stop

SAT9:34 pmSan Antonio

$264

Find similar

Delta

Jan 7

SAT5:30 amSan Antonio

10h 14m

2 stops

DLH3:44 pmDuluth Intl

Jan 14

DLH11:56 amDuluth Intl

10h 59m

2 stops

SAT10:55 pmSan Antonio

$294

Find similar

United Airlines flights from San Antonio to Duluth

Our best United Airlines deals on San Antonio to Duluth flight tickets

United Airlines

Jan 21

SAT9:00 amSan Antonio

5h 30m

1 stop

DLH2:30 pmDuluth Intl

Jan 24

DLH3:05 pmDuluth Intl

8h 08m

1 stop

SAT11:13 pmSan Antonio

$408

Find similar

United Airlines

Jan 21

SAT5:25 amSan Antonio

9h 05m

2 stops

DLH2:30 pmDuluth Intl

Jan 24

DLH3:05 pmDuluth Intl

8h 08m

1 stop

SAT11:13 pmSan Antonio

$449

Find similar

United Airlines

Jan 21

SAT5:25 amSan Antonio

9h 05m

2 stops

DLH2:30 pmDuluth Intl

Jan 24

DLH7:40 amDuluth Intl

12h 01m

2 stops

SAT7:41 pmSan Antonio

$489

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Wed 1/7

6:30 am-11:16 am

1 stop4h 46m

Duluth Intl

Wed 1/14

4:24 pm-9:34 pm

1 stop5h 10m

$258

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Wed 1/7

5:30 am-3:44 pm

2 stops10h 14m

Duluth Intl

Wed 1/14

4:24 pm-9:34 pm

1 stop5h 10m

$264

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Wed 1/7

5:30 am-3:44 pm

2 stops10h 14m

Duluth Intl

Wed 1/14

11:56 am-10:55 pm

2 stops10h 59m

$294

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Thu 4/9

6:30 am-12:08 pm

1 stop5h 38m

Duluth Intl

Wed 4/15

4:20 pm-9:28 pm

1 stop5h 08m

$363

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Wed 1/21

9:00 am-2:30 pm

1 stop5h 30m

Duluth Intl

Sat 1/24

3:05 pm-11:13 pm

1 stop8h 08m

$408

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Thu 4/9

6:30 am-12:08 pm

1 stop5h 38m

Duluth Intl

Wed 4/15

12:00 pm-11:12 pm

2 stops11h 12m

$444

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Wed 1/21

5:25 am-2:30 pm

2 stops9h 05m

Duluth Intl

Sat 1/24

3:05 pm-11:13 pm

1 stop8h 08m

$449

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Wed 1/21

5:25 am-2:30 pm

2 stops9h 05m

Duluth Intl

Sat 1/24

7:40 am-7:41 pm

2 stops12h 01m

$489

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Wed 1/21

5:25 am-2:30 pm

2 stops9h 05m

Duluth Intl

Sat 1/24

3:05 pm-1:09 pm

2 stops22h 04m

$555

San AntonioDuluth

SAT - DLH

SATDLH

San Antonio

Thu 4/9

5:57 pm-10:44 am

2 stops16h 47m

Duluth Intl

Wed 4/15

11:26 am-9:10 pm

2 stops9h 44m

$616

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Antonio to Duluth

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

Prices

Airlines

What is the cheapest day to depart on your flight to Duluth?

The cheapest day to depart from San Antonio to Duluth is on a Wednesday when prices can be found for as low as $296. On the other hand, Sunday is the most expensive day to depart from San Antonio because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $488.

What is the cheapest time of day to depart on your flight to Duluth?

Flying to Duluth from San Antonio in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $388 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to Duluth is in the morning when prices are around $408.

When to book flights from San Antonio to Duluth

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio to Duluth according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Antonio to Duluth (SAT to DLH) flight deals and tips

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

Fastest flight time	5h 30m
Direct flights	None

The fastest flight from San Antonio to Duluth takes 5h 30m

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

Search flight deals

How far is San Antonio to Duluth Intl by plane?
A flight from San Antonio to Duluth Intl will travel around 1246.7 mi. In terms of flight time, this usually takes a little over 5h 30m.
When did momondo last update prices for flights from San Antonio Airport to Duluth Intl Airport?
Prices for flights from San Antonio Airport to Duluth Intl Airport are updated daily.
How many operators does momondo search for flights from San Antonio Airport to Duluth Intl Airport?
As of December 2025, there is 1 operator available to choose from for flights from San Antonio Airport to Duluth Intl Airport.
How old do you have to be to fly from San Antonio Airport to Duluth Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Duluth Intl Airport.
What documentation or ID do you need to fly to Duluth Intl Airport?
The required travel and health documents for your Duluth Intl 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 Duluth Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from San Antonio to Duluth?
momondo data reveals that the most frequently booked airline on the route from San Antonio to Duluth is Delta, representing 100% of all bookings.

Best airlines flying from San Antonio to Duluth

Compare and see reviews for airlines that fly from San Antonio to Duluth with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $258	Free Cancellation	Rating 7.9 8,007 reviews		Search Delta flights

Two Harbors

Hayward

Superior

Cloquet

Why use momondo?

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

It is quick and easy to find San Antonio to Duluth 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 Duluth that suits you.

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

Flights from San Antonio to Duluth 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 San Antonio to Duluth?

Once all potential San Antonio to Duluth 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 San Antonio to Duluth right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Duluth from San Antonio. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.