Per Heel’s First, you can earn 25,000 bonus United miles with this targeted offer after taking 4 roundtrip flights. Keep in mind, it appears to be targeted to those who haven’t flown United much lately, so if you’re already a 1K flyer you probably won’t be eligible.

Easy Way To Earn 25,000 United MileagePlus Miles

Easy Way To Earn 25,000 United MileagePlus Miles

Simply register today and earn up to 25,000 award miles when you fly qualifying roundtrips on United through June: •  Register by April 30, 2015 •  Book your travel by June 30, 2015 •  Complete travel between April 1, 2015 and June 30, 2015

Earn When you fly 5,000 award miles 1 qualifying roundtrip 10,000 award miles 2 qualifying roundtrips 25,000 award miles 4 qualifying roundtrips

Terms and conditions:
1. Only original recipients of email invitation to the offer can register and participate in this promotion.
2. Registration is required by April 30, 2015.
3. To qualify for this offer, eligible members must register, purchase and complete paid, qualifying roundtrips to any destination worldwide within the qualifying ticketing and travel periods.
4. Ticketing dates: March 17, 2015 – June 30, 2015.
5. Offer is valid for travel beginning on or after April 1, 2015 and completed on or before June 30, 2015.
6. Offer is valid on F, A, J, C, D, Z, P, Y, B, M, E, U and H fare classes. At least one segment of the qualifying roundtrip must be booked in the eligible fare class and flown on United or United Express to qualify for this offer.
7. For this offer, a roundtrip is defined as travel from an origin city to a destination city with return travel beginning in the outbound destination city back to the first origin city with a minimum of one segment flown on flights operated by United and United Express. A segment is defined as one takeoff and one landing. One-way, circle trips, multi-city itineraries and itineraries with stopovers do not qualify for this offer.
8. Bonus may be earned for a maximum of 25,000 bonus award miles in accordance with these terms and conditions.
9. The offer is not valid on government fares.
10. Passenger must be a member of United’s MileagePlus program for travel to qualify for this offer. Qualifying flight activities must be credited to the MileagePlus by June 30, 2015 in order to qualify for this offer.
11. This offer is not combinable with other non-combinable offers.
12. Bonus award miles will post to your account 6-8 weeks after the promotion ends on June 30, 2015.

Bottom Line

If you are gonna be flying United during this period, then you might as well try to register.