The cheapest times to fly from SID to HDN are

  • January 8th to March 25th
  • April 23rd to June 10th (except the week of May 28th)
  • November 12th to December 9th

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 HDN is mid January. Prices can be as high as $5402 for Sunday flights during late October to early November, or as low as $1701 for Tuesday flights around mid January.


When to Fly to Hayden

Flying from Sal Island (SID) to Hayden, CO (HDN) will usually cost between $1788 to $2669 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid January with an average ticket price of $1739. Due to high demand the most expensive time to fly is late October to early November, with an average price of $3378. Planning your trip to low-cost times can easily save you $1638 on economy flights and even more on first-class flights. Generally, any price below $2056 can be considered a good price for a round-trip SID to HDN flight.

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

SID to HDN Flight Prices

Compared to other flights, the SID to HDN flight is more expensive than the average and costs less than the average flight leaving from Sal. The average price per mile (for a direct flight) is $0.25, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly to Hayden, and Wednesdays are the most expensive days to return to Sal. Selecting flights on the least expensive days could save you up to $603 (18%) 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 $2032. Return trip prices are from the HDN 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 HDN can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 10 hour 18 minutes may 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 a nonstop flight from SID to HDN while comparing.

Destination alternative #1: Denver International Airport (DEN) in Denver, CO

  • 141 miles (227 km) away from HDN
  • Usually 4.28% less expensive than HDN
  • 2-layover flights available

See SID to DEN flights


Flight Hacking SID to HDN

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 HDN — but Champion Traveler does!

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

  • Price for both tickets: $1628
  • Average savings: $429 (20.84%)

See SID to MAN flights

Hack #2: Manchester (SID > MAN > HDN)

  • Price for both tickets: $1638
  • Average savings: $418 (20.33%)

See SID to BOS flights

Hack #3: Rome (SID > FCO > HDN)

  • Price for both tickets: $1829
  • Average savings: $227 (11.04%)

See SID to FCO flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 10 major airlines flying this route most often: Air Canada, American, Austrian, Azores Airlines, British Airways, Brussels Airlines, Lufthansa, Tap Air Portugal, Turkish Airlines, United, and potentially more during busy seasons.

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

The distance between the two airports is roughly 5177 miles or 8332 kilometers.

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

The real-world flight time for a nonstop SID to HDN flight is about 10 hour 18 minutes.

How many flights go between Sal Island and Hayden, CO?

It depends on the day of the week and the date, but a typical day might have around 24 available flights from SID to HDN.


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 HDN
Destination airport name Yampa Valley Airport
City Hayden, CO
Country the United States
Latitude 40.5
Longitude -107.2


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.