The cheapest times to fly from RBY to KYU are

  • July 23rd to May 6th (except the week of January 22nd)

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 RBY to KYU is early October. Prices can be as high as $500 for Tuesday flights during early to mid July, or as low as $449 for Friday flights around early October.


When to Fly to Koyukuk

Flying from Ruby, AK (RBY) to Koyukuk, AK (KYU) will usually cost between $449 to $500 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early October with an average ticket price of $449. Due to high demand the most expensive time to fly is early to mid July, with an average price of $500. Planning your trip to low-cost times can easily save you $51 on economy flights and even more on first-class flights. Generally, any price below $475 can be considered a good price for a round-trip RBY to KYU flight.

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

RBY to KYU Flight Prices

Compared to other flights, the RBY to KYU flight is much cheaper than the average and costs slightly more than the average flight leaving from Ruby. The average price per mile (for a direct flight) is $4.4, which is above average.


Flight Prices by Day of the Week

Friday is usually the cheapest day to fly to KYU, and Wednesday the cheapest day to fly back into RBY. Tuesdays 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 $1 (0%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Friday and returning a week later will cost an average of $474. Return trip prices are from the KYU to RBY 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 RBY to KYU can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 1 hour 6 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 RBY to KYU while comparing.

Destination alternative #1: Edward G. Pitka Sr. Airport (GAL) in Galena, AK

  • 25 miles (40 km) away from KYU
  • Usually 49.95% less expensive than KYU
  • Nonstop flights available

See RBY to GAL flights

Destination alternative #2: Nulato Airport (NUL) in Nulato, AK

  • 14 miles (23 km) away from KYU
  • Usually 6.85% less expensive than KYU
  • 1-layover flights available

See RBY to NUL flights

Destination alternative #3: Huslia Airport (HSL) in Huslia, AK

  • 69 miles (111 km) away from KYU
  • Usually 6.85% less expensive than KYU
  • 1-layover flights available

See RBY to HSL flights


Flight Questions Answered

Still have questions about flying from RBY to KYU? We’ve got answers.

Which airlines fly this route?

You can find 2 major airlines flying this route most often: Ravn Alaska, Wright Air, and potentially more during busy seasons.

How far away is it from Koyukuk Airport to Ruby Airport?

The distance between the two airports is roughly 67 miles or 108 kilometers.

How long does it take to fly from RBY to KYU?

The real-world flight time for a nonstop RBY to KYU flight is about 1 hour 6 minutes.

How many flights go between Ruby, AK and Koyukuk, AK?

It depends on the day of the week and the date, but a typical day might have around 8 available flights from RBY to KYU.


Airport Location Info


Departing Airport

Origination code RBY
Origination airport name Ruby Airport
City Ruby, AK
Country the United States
Latitude 64.7
Longitude -155.5

Return Airport

Destination code KYU
Destination airport name Koyukuk Airport
City Koyukuk, AK
Country the United States
Latitude 64.9
Longitude -157.7


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.