The cheapest times to fly from SID to DLH are

  • March 19th to July 22nd
  • August 20th to October 14th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SID to DLH is early to mid May. Prices can be as high as $9941 for Wednesday flights during early to mid December, or as low as $1747 for Tuesday flights around early to mid May.


When to Fly to Duluth

Flying from Sal Island (SID) to Duluth, MN (DLH) will usually cost between $1976 to $5422 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid May with an average ticket price of $2028. Due to high demand the most expensive time to fly is early to mid December, with an average price of $5626. Planning your trip to low-cost times can easily save you $3598 on economy flights and even more on first-class flights. Generally, any price below $3293 can be considered a good price for a round-trip SID to DLH flight.

See below for a graph of average weekly prices for the SID to DLH route. All prices are for round-trip tickets in USD.

SID to DLH Flight Prices

Compared to other flights, the SID to DLH flight is more expensive than the average and costs slightly more than the average flight leaving from Sal. The average price per mile (for a direct flight) is $0.46, which is a bit above average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to DLH, and Monday the cheapest day to fly back into SID. Wednesdays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $3031 (45%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $2988. Return trip prices are from the DLH to SID flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SID to DLH can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 8 hour 55 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from SID to DLH while comparing.

Destination alternative #1: Minneapolis-St Paul International Airport (MSP) in Minneapolis, MN

  • 144 miles (232 km) away from DLH
  • Usually 37.91% less expensive than DLH
  • 2-layover flights available

See SID to MSP flights

Destination alternative #2: Falls International Einarson Field Airport (INL) in International Falls, MN

  • 132 miles (212 km) away from DLH
  • Usually 20.74% less expensive than DLH
  • Nonstop flights available

See SID to INL flights

Destination alternative #3: Bemidji Regional Airport (BJI) in Bemidji, MN

  • 137 miles (220 km) away from DLH
  • Usually 11.33% less expensive than DLH
  • Nonstop flights available

See SID to BJI flights


Flight Hacking SID to DLH

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SID to DLH — but Champion Traveler does!

Hack #1: Boston, MA (SID > BOS > DLH)

  • Price for both tickets: $1283
  • Average savings: $2011 (61.05%)

See SID to DUB flights

Hack #2: Dublin (SID > DUB > DLH)

  • Price for both tickets: $1446
  • Average savings: $1847 (56.09%)

See SID to BOS flights

Hack #3: Manchester (SID > MAN > DLH)

  • Price for both tickets: $1629
  • Average savings: $1664 (50.53%)

See SID to MAN flights


Flight Questions Answered

Still have questions about flying from SID to DLH? We’ve got answers.

Which airlines fly this route?

You can find 8 major airlines flying this route most often: Air Canada, American, Azores Airlines, Delta, Iberia, Lufthansa, Tap Air Portugal, United, and potentially more during busy seasons.

How far away is it from Duluth International Airport to Amilcar Cabral International Airport?

The distance between the two airports is roughly 4404 miles or 7088 kilometers.

How long does it take to fly from SID to DLH?

The real-world flight time for a nonstop SID to DLH flight is about 8 hour 55 minutes.

How many flights go between Sal Island and Duluth, MN?

It depends on the day of the week and the date, but a typical day might have around 27 available flights from SID to DLH.


Airport Location Info


Departing Airport

Origination code SID
Origination airport name Amilcar Cabral International Airport
City Sal Island
Country Cape Verde
Latitude 16.7
Longitude -22.9

Return Airport

Destination code DLH
Destination airport name Duluth International Airport
City Duluth, MN
Country the United States
Latitude 46.8
Longitude -92.2


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.