airfare from Philadelphia to Detroit

Hi - I am hoping someone can help me. I am hoping to purchase airline tickets for my husband and son to visit his brother in Detroit sometime in April but not a definite date yet. I want to give this to him for christmas but not sure what site to go on for the lower fares. If anyone can help me I would really appreciate any help. We usually fly southwest but I do not think they fly non stop from Philadelphia. Thanks for any help.

airfare from Philadelphia to Detroit

Northwest and US Air are the only two airlines that fly that route non-stop. Without definite dates you can%26#39;t book a cheap (non-refundable) fare. I know NW sells gift certificates, US probably does the same. If you don%26#39;t have the dates before Christmas, maybe print up your own gift certificate for them. That way you can set dates later when you know everyone%26#39;s scheduled and book the best fare on any airline.

airfare from Philadelphia to Detroit

Go to Kayak.com. They will give you comparative fares with several airlines (Southwest is not included). Southwest does not fly non-stop. There is a connection at Chicago-Midway. Indeed, only US Air and Northwest fly non-stop. Moms

My best friend lives in Philly (actually in Doylestown) and I always fly NWA.com, its non-stop! I agree with the previous poster, try Kayak and they compare almost all airlines.

In the spring/summer Spirit flies from Detroit to AC (i believe its a seasonal route), that is a direct flight and I use Spirit when I meet her and her family at the shore.

Two other sites that compare multiple airlines are sidestep.com and bookingbuddy.com

US Air has always been the cheapest on flights I%26#39;ve taken to and from Philly. They have lost my bags or damaged them twice now though.

I like Fare Compare to search for airlines.

http://www.farecompare.com/

You can purchase a full fare, refundable ticket and change the travel dates as you please. But they are about $1,200 each.

You%26#39;ve got to sign up for the Philadelphia-Detroit route at Airfare Watchdog - http://www.airfarewatchdog.com.

They%26#39;ll email you all the crazy sale fares that pop up in the system, it%26#39;s quite a site, they research everything by hand, which gives it the edge over sites like Fare Compare. I signed up for one of my usual routes and in the process saved a whole bundle of money.