Looks like TripIt's Pro features.... but for free?
Update: Seems to be that, but in a you get what you pay for way. Sure you get notification (haven't tested as I don't have any flights booked until May), but adding itinerary is beyond impossible, in my opinion. Better off just paying for TripIt Pro.
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Hunter
Trip38 lets you travel smart with the easiest travel itinerary planner with real-time flight alerts, airport guides.
1. Forward your flight ticket confirmation emails to explore@trip38.com
2.Trip38 will update you with timely alerts about your flight.
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What makes this different from the other players in this space like TripIt?
Airmail
GrowthHackers