About X4
X4 is a regional carrier doing something genuinely specific — connecting small Alaskan communities that most travelers wouldn't even think to look up. With 32 non-stop routes all within the USA and a main hub at Juneau (JNU), this isn't an airline chasing transcontinental glory. It's built for the kind of travel where driving isn't an option and the next town over might only be reachable by air or boat. That focus shows in everything about how it operates. Tight network, real utility, zero pretension. Think of X4 as the connective tissue of Southeast Alaska's air travel. Its 13 airports are mostly small, the routes are short — the longest being KTN to JNU at just 377 km — and the whole network spans about 4,480 km total. This is regional flying in the most honest sense of the phrase.
Why fly X4?
Honestly? You fly X4 because sometimes it's your only realistic option — and that's not a knock. If you're heading somewhere like Klawock (KLW) or Sitka (SIT), X4 is doing the work that bigger carriers simply won't bother with. That's worth something. But beyond necessity, there's something kind of refreshing about an airline that knows exactly what it is. No fluff, no padding. You're getting from point A to point B across some genuinely spectacular Alaskan scenery — and on short hops like these, the window seat does a lot of the heavy lifting for the experience anyway. JNU has 10 routes fanning out from it, which makes Juneau a logical anchor if you're building a multi-stop Alaska trip. X4 covers the regional gaps that no one else is filling.
X4 hub airports
- JNU Juneau — 10 X4 routes from USA
- KLW Klawock — 3 X4 routes from USA
- SIT Sitka — 3 X4 routes from USA
- KTN Ketchikan — 2 X4 routes from USA
- SGY Skagway — 2 X4 routes from USA
Top destination countries on X4
- USA — 32 X4 routes
Tips for booking X4
First thing — book early if you're flying into smaller hubs like KLW or SIT. Seats are limited and these routes don't run with the same frequency as mainline flying. Miss your window and your whole itinerary shifts. Baggage is worth checking carefully before you pack. Small regional aircraft often have strict weight limits, and Alaska travel usually involves gear — fishing equipment, hiking kit, all of it adds up fast. Don't expect lounge access or a mileage program with major transfer partners. X4 is a point-to-point regional operation. Build connections through JNU where possible — it's the hub with the most flexibility and the most onward options.
Frequently asked questions about X4
Where does X4 fly?
X4 operates 32 routes primarily throughout the USA, with a focus on regional destinations. The airline specializes in connecting communities across North America with its extensive domestic network.
What is X4's main hub airport?
X4's main hub is Juneau (JNU) in Alaska, which serves as the central connection point for the airline's regional network.
What type of airline is X4?
X4 is a regional carrier that focuses on serving smaller and medium-sized markets across the USA. As a regional airline, it specializes in connecting communities that may have limited service from larger carriers.
When should I book X4 flights and what fare classes are available?
For the best fares, book regional flights 3-4 weeks in advance. X4 typically offers multiple fare classes ranging from basic economy to premium options, so compare available fares when booking to find the best value for your travel needs.
What are X4's baggage and check-in policies?
Baggage allowances and check-in procedures vary by fare class and route. We recommend checking X4's website or contacting the airline directly for specific baggage limits, fees, and online check-in options for your flight.