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Cheap flights from Duluth to San José from $648

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Duluth to San José departing on 12/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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United Airlines Logo
7:55 am - 1:15 pmDLH-SJO
29h 20m2 stops
United Airlines Logo
11:28 pm - 9:59 pmSJO-DLH
22h 31m2 stops
$648United Airlines
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Sat, Dec 6 - Tue, Dec 9

momondo Fare Finder

 
Customize your flight search to find flights from Duluth to San José 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 October 16, 2025.
Use the filters below to find and compare flights from Duluth to San José that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DuluthSan José

DLH - SJO

DLHSJO

Duluth Intl

Sat 12/6

7:55 am-1:15 pm

2 stops29h 20m

San José Juan Santamaria Intl

Tue 12/9

11:28 pm-9:59 pm

2 stops22h 31m

$648

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

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 day to depart on your flight to San José?

On average, the least expensive day to fly to San José from Duluth is on a Monday. momondo users have found tickets for Monday departures for as low as $1,040. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Duluth to San José on a Thursday will generally be more expensive and average around $1,098. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Duluth to San José flights are usually those with departure times in the afternoon. Our users have found flights to San José in the afternoon for as low as $1,040. Flights in the morning are often more expensive with an average ticket price of $1,216.

When to book flights from Duluth to San José

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

Cheap Duluth to San José (DLH to SJO) flight deals and tips

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

Direct flights

None
There are no direct flights from Duluth to San José. There are no popular flight routes from Duluth to San José.
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  • How far is Duluth Intl to San José Juan Santamaria Intl by plane?

    The distance between Duluth Intl and San José Juan Santamaria Intl is about 2587.5 mi. 29h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Duluth Intl Airport to San José Juan Santamaria Intl Airport?

    Prices for flights from Duluth Intl Airport to San José Juan Santamaria Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Duluth Intl Airport to San José Juan Santamaria Intl 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 Duluth Intl Airport to San José Juan Santamaria Intl Airport.

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The necessary travel and health documents for your San José Juan Santamaria Intl Airport 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.

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Alajuela
Monteverde
Heredia
Dominical
Santa Elena
Esterillos Este

Why use momondo?

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

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 San José from Duluth.

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

momondo does allow users to show only those flights to San José 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 San José?

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

Price alerts on flights to San José from Duluth are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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