If they’re not the cheapest option, try searching by month to compare costs throughout the week.
We scan thousands of airfares from hundreds of airlines across the globe. We've found that zero airlines operate the 8075 km flight from Manchester to Flagstaff. Flights during peak season tend to be the most expensive – so if you want to go during that time, it's best to book early. Or you could try to get a last-minute deal.
If you're fairly flexible about when you want to fly to Flagstaff, searching by month will show you the cheapest times to go.
Once you've selected your flight, you'll need to fill out your details to book. And don’t forget to look at Netflights’ hotels and car hire – you could save even more money on your trip when you book everything in one go.